tag:blogger.com,1999:blog-11398313478298884512024-03-10T00:35:14.250-08:00Gisky: geeky GISJohan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.comBlogger23125tag:blogger.com,1999:blog-1139831347829888451.post-53555025922854824022018-03-22T09:17:00.000-07:002018-03-22T09:17:29.741-07:00Easily testing the latest version of GDALGDAL is one of the cornerstones of the open source geospatial stack (and actually of many of the proprietary systems as well).<br />
If you want to use or test the latest features this can be done quite easily by setting a few environment variables:<br />
<br />
<script src="https://gist.github.com/johanvdw/b7e6e7a4857771dcc2066e090efec28e.js"></script>
I save this commands in a file new_gdal.sh. After running
<br />
<br />
<pre>source new_gdal.sh</pre>
<pre></pre>
You will be able to use all the latest gdal tools.
<br />
<br />
<pre>johan@x1:~$ source ~/latest_gdal.sh
johan@x1:~$ gdalinfo --version
GDAL 2.3.0dev, released 2017/99/99
</pre>
<pre></pre>
<br />
<br />
Actually if you use this command, also tools dynamically linked to gdal will be using this latest version.<br />
<br />
<pre>johan@x1:~$ saga_cmd io_gdal
____________________________
##### ## ##### ##
### ### ## ###
### # ## ## #### # ##
### ##### ## # #####
##### # ## ##### # ##
____________________________
SAGA Version: 6.4.0
Library: GDAL/OGR
Category: Import/Export
File: /usr/local/lib/saga/libio_gdal.so
Description:
Interface to Frank Warmerdam's Geospatial Data Abstraction Library (GDAL).
Version 2.3.0dev
</pre>
Note that this will work well for packages dynamically linked to the C api. If packages are linked to the C++ api, they may need recompilation.<br />
<br />
If you are on windows, you could have a look at <a href="https://github.com/gisinternals/buildsystem/blob/master/SDKShell.bat">SDKShell.bat </a>(part of the builds from Tamas Szekeres).<br />
<br />
Note: I actually wrote this blogpost because in his <a href="https://fosdem.org/2018/schedule/event/geo_gdal/">presentation on FOSDEM</a> Jeremy Mayeres recommended using Docker for using the latest version of GDAL. I think that solution is overkill for desktop usage, and using environment variables is easier.Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-56066014075907690722018-03-07T14:39:00.001-08:002018-03-18T14:07:18.064-07:00Don't use zonal statistics as a table in ArcGIS<b>Short version:</b> Don't ever use zonal statistics as a table in arcgis. It manages to do simple calculations such as calculating an average wrong.<br />
<div>
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://desktop.arcgis.com/en/arcmap/10.3/tools/spatial-analyst-toolbox/GUID-23B9EFA7-D34B-481F-8904-A23F7FA0821C-web.gif" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://desktop.arcgis.com/en/arcmap/10.3/tools/spatial-analyst-toolbox/GUID-23B9EFA7-D34B-481F-8904-A23F7FA0821C-web.gif" data-original-height="257" data-original-width="628" height="163" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Example of using zonal statistics between grid cells (from the ArcGIS manual)</td></tr>
</tbody></table>
<br />
<br />
<b>Long version:
</b>
I was hired by a customer to determine why they got unexpected results for their analyses. These analyses led to an official map with legal consequences.
After investigating their whole procedure a number of issues were found. But the major source of errors was one which I found very unlikely: it turns out that the algorithm used by ArcGIS spatial analyst to determine the <b>average grid value in a shape is wrong</b>. Not just a little wrong. Very wrong.
And no, I am not talking about the <a href="https://gis.stackexchange.com/questions/157766/major-bug-in-arcgis-zonal-statistics">no data handling </a>which was <i>very</i> wrong as well, I'm talking about how the algorithm compares vectors and rasters
Interestingly, this seems to be known, as the <a href="http://desktop.arcgis.com/en/arcmap/10.3/tools/spatial-analyst-toolbox/zonal-statistics-as-table.htm">arcgis manual</a> states
<br />
<blockquote>
It is recommended to only use rasters as the zone input, as it offers you greater control over the vector-to-raster conversion. This will help ensure you <b>consistently get the expected results</b>.</blockquote>
So how does arcgis compare vectors and rasters? In fact one could invent a number of algorithms:<br />
<br />
<ul>
<li>Use the centers of the pixels and compare those to the vectors (most frequently used and fastest).</li>
<li>Use the actual area of the pixels </li>
<li>Use those pixels of which the majority of the area is covered by the vector. </li>
</ul>
<br />
<br />
None of these algorithm matches with the results we saw from arcgis, even though the documentation seems to suggest the first method is used.
So what is happening? It seems that arcgis first converts your vector file to a raster, not necessarily in the same grid system as the grid you compare to. Then it interpolates your own grid (using an undocumented method) and then takes the average of those interpolated values if their cells match with the raster you supplied. This means pixels outside your shape can have an influence on the result. This mainly seems to occur when large areas are mapped (eg Belgium at 5m).<br />
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisJuUFj8w7LpfBvj06WjSCvnvKnbgfdozdZXiRVdPIiohhZ93i95f_0uIbkNK3IGDm3JQQtAdkbn_513iCEAqe0WkV1EIlqUxrdn5zQk63GKhJ5UkWC-mau-GcEWXXwWyefvI80Fb-oHNO/s1600/temp.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="536" data-original-width="713" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisJuUFj8w7LpfBvj06WjSCvnvKnbgfdozdZXiRVdPIiohhZ93i95f_0uIbkNK3IGDm3JQQtAdkbn_513iCEAqe0WkV1EIlqUxrdn5zQk63GKhJ5UkWC-mau-GcEWXXwWyefvI80Fb-oHNO/s320/temp.png" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">The average of this triangle is calculated by ArcGIS as 5.47</td></tr>
</tbody></table>
<br />
<br />
I don't understand how the market leader in GIS can do such a basic operation so wrong, and the whole search also convinced me how important it is to open the source (or at least the algorithm used) to get reproducible results.
Anyway, if you are still stuck with arcgis, know that you can install <a href="http://saga-gis.org/">SAGA GIS</a> as a toolbox. It contains <a href="http://www.saga-gis.org/saga_tool_doc/6.3.0/shapes_grid_2.html">sensible algorithms</a> to do a vector/raster intersection and they are also approximately 10 times faster than the ArcGIS versions. Or you can have a look at how Grass and QGIS implement this. All of this of course only if you consistently want to get the expected results...<br />
<br />
And if your government also uses ArcGIS for determining taxes or other policies, perhaps they too should consider switching to a product which consistently gives the expected results.<br />
<br />
<b>Update March 18 2018</b>: make sure you check out the comments from Steve Kopp (spatial analyst development team) below and the discussion - it is interesting.</div>
Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com12tag:blogger.com,1999:blog-1139831347829888451.post-76430394855324864932016-11-06T12:30:00.000-08:002016-11-06T12:31:32.081-08:00Computer generated paraphWhile generating some random test data with some unique properties (all positive, highly autocorrelated, uniform distributed) I accidently bumped on a nice way to generate paraphs using R.<br />
<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhOiqsgwEdjZKi23IAfpRfKbxLvQLrJPw1QeZwLbJtZGB18YFzOM491CNc5NqoGOB9Hua5EtyF7qfszZ99zljP_FGJjLyGZGUfsOFY0fzMzFEfd1lzq8JdAfgroIcyp5DnJu5le4qiujZyY/s1600/R+Graphics%253A+Device+2+%2528ACTIVE%2529_009.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="175" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhOiqsgwEdjZKi23IAfpRfKbxLvQLrJPw1QeZwLbJtZGB18YFzOM491CNc5NqoGOB9Hua5EtyF7qfszZ99zljP_FGJjLyGZGUfsOFY0fzMzFEfd1lzq8JdAfgroIcyp5DnJu5le4qiujZyY/s320/R+Graphics%253A+Device+2+%2528ACTIVE%2529_009.png" width="320" /></a></div>
Try yourself in R:
<script src="https://gist.github.com/johanvdw/103ea74d3b35f5868f4b7255b2ad8f3f.js"></script>Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-44744903340296519702016-09-15T02:17:00.003-07:002016-09-15T02:17:47.792-07:00Foss4g.be - The Belgian conference on open-source geospatial software<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCmlGjOapOxho1fXmhnxqOhVK5pZC5Jsk_F7fiTctWIJYnMCNL31Vdew4GqeoeP-rWcslFIQVu_qp-VR1bh-xll11EgmLGRav5UqRyu9NcK_uebh2-bXUf8gu4XV03YMplsMfjYfh8zelH/s1600/foss4g_001.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCmlGjOapOxho1fXmhnxqOhVK5pZC5Jsk_F7fiTctWIJYnMCNL31Vdew4GqeoeP-rWcslFIQVu_qp-VR1bh-xll11EgmLGRav5UqRyu9NcK_uebh2-bXUf8gu4XV03YMplsMfjYfh8zelH/s320/foss4g_001.jpg" width="320" /></a>Next week, the second edition of <a href="http://2016.foss4g.be/">Foss4g.be</a>, the Belgian conference on open-source geospatial software will take place in Tour and Taxis in Brussels.<br />
<br />
The conference will bring together developers and users of open source geomatics software from Belgium and all over the world. Participation is free of charge but <a href="http://2016.foss4g.be/inscription.php">registration </a>is required.<br />
<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGLw5crarY74B-tFvTHAk_wevrAhM1Si_Hnan8yoDyave-EYUiOOJ_EzzXWyCXUPhnKiu6aa7eFJJO2j7p2XEO__PhlVVD70Iwm4-nL0XMzG2JT6CduWfDPZ61MWVTg6DldjikdTw_I1m7/s1600/foss4g_031.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGLw5crarY74B-tFvTHAk_wevrAhM1Si_Hnan8yoDyave-EYUiOOJ_EzzXWyCXUPhnKiu6aa7eFJJO2j7p2XEO__PhlVVD70Iwm4-nL0XMzG2JT6CduWfDPZ61MWVTg6DldjikdTw_I1m7/s320/foss4g_031.jpg" width="320" /></a>We have a varied <a href="http://2016.foss4g.be/programme.php">program </a>for you: in the plenary session we will present the current state of many of the major Open source GIS applications - this includes novelties demonstrated at the last FOSS4G conference in Bonn.<br />
<br />
Next in the main track the different regions of Belgium will present their open (geo) data sets. Moreover Christian Quest from Open StreetMap France will explain how the Openstreetmap community was actually part of the creation and maintenance of the address database in France.<br />
<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw4crW_wiO8RtTbCO7r46-AJy98kPkoFfRRp42eoUi1wi3zks7zwh74THNGuQblXEnbvd5LRyaHa8gOg06oUJK7XGRFveG8yz7IScOYIzySS8oeuPtayeSbgojHyS6uv5QUAv6ULczZRzl/s1600/foss4g_046.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw4crW_wiO8RtTbCO7r46-AJy98kPkoFfRRp42eoUi1wi3zks7zwh74THNGuQblXEnbvd5LRyaHa8gOg06oUJK7XGRFveG8yz7IScOYIzySS8oeuPtayeSbgojHyS6uv5QUAv6ULczZRzl/s320/foss4g_046.jpg" width="213" /></a>In our parallel sessions we have presentations covering all aspects of Open source geospatial. Presentations on the usage of some of the most widely used programs, such as QGis, Openlayers3 and PostGIS, but also less well known solutions for handling 3D data, building SDI and doing advanced analyses. With the open streetmap conference happening just the day after this conference, we also have a special track with specialised<br />
<br />
Last but not least, conferences are all about meeting networking and meeting new people, and you will get the chance to do so during our breaks!<br />
<br />
Hope to see many of you in Brussels!<br />
<br />
<a href="http://2016.foss4g.be/">http://2016.foss4g.be</a>Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-15569753830894142732016-09-08T01:13:00.003-07:002016-09-15T00:32:47.141-07:00In September, Brussels turns into MaptemberIn two weeks from now, from 22 september until 26 september 5 big events from the open geo movement will be happening in Brussels.<br />
<img src="http://2016.foss4g.be/images/foss4g2016.svg" height="240" width="320" /><br />
<br />
On 22 september there will be two conferences: one FOSS4G Belgium conference organised by the local , which focuses on software for Geo. There will also be a lot of attention to open (geo) data sets provided by different governement agencies in Belgium.<br />
<img src="http://summit.hotosm.org/img/HOTsummit2016_logo.svg" height="320" width="320" /><br />
<br />
On the same day in a different location the Humanitarian OpenStreetMap Team will also be gathering for their HOT summit. After both events, forces will be joined for a mapathon.<br />
<br />
The next three days the international openstreetmap conference will be happening at VUB.<br />
<img alt="State Of The Map" src="http://maptember.brussels/images/sotm.svg" height="320" width="316" /><br />
<br />
Last but not least on Monday after all events, there will be a hackday, focused on OSM and OSGeo technologies.<br />
<br />
Completely lost track? Check<br />
<a href="http://maptember.brussels/">http://maptember.brussels/</a> for an overview.Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-84706651728482309052016-04-11T00:28:00.003-07:002016-04-11T00:28:52.086-07:00OSGeo.be presents: GeoDevEvening webmapping and OpenLayers 3Next monday, <a href="http://osgeo.be/">OSGeo.be</a> will be organising their first GeoDevEvening. The theme will be webmapping and especially Openlayers 3. There will be two speakers, Pierre Marchand of <a href="http://atelier-cartographique.be/">Atelier Cartographique</a> wil give an overview of Webmapping tools. Later we will take a deeper dive with Thomas Gratier, one of the authors of the <a href="https://www.packtpub.com/web-development/openlayers-3-beginner%E2%80%99s-guide">OpenLayers 3 Beginners guide</a>.<br />
<br />
<a href="http://openlayers.org/">OpenLayers 3</a> is a JavaScript based library for web mapping, published under BSD license. It groups a set of functionalities to create both lightweight web mapping applications and more heavy web mapping applications for advanced usages. It enables display of geographic features (markers, lines, polygons) with custom styles, most of the time with background maps services from various sources (including OpenStreetMap). It manages all interactions to select, draw geographic entities, display, measure geographic coordinates and manage different Earth representations using cartographic projections.<br />
<br />
The event will happen at <a href="http://bel.brussels/">BEL </a>in Brussels (those who were at FOSS4G.be will remember the place), next monday 18 april at 19:00 until 22:00. The event is free. You can register <a href="https://www.eventbrite.fr/e/billets-osgeodevevening-openlayers3-24251072611">here</a>.<br />
<br />
Hope to see many of you in Brussels!<br />
<br />
About OSGeoDevEvening:<br />
OSGeoDevEvening is an event where developers / researchers can learn & speak about a specific tech. We are always looking for speakers for the next events, so if you want to give a presentation about R, grass, QGIS, PostGIS... please <a href="mailto:board@osgeo.be">contact us</a>.Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-74878841602997903572016-02-02T13:27:00.000-08:002016-02-02T13:36:30.481-08:00Report of Geospatial@FOSDEM 2016<br />
Last Sunday, during <a href="https://fosdem.org/2016/">FOSDEM</a> the second edition of the <a href="https://fosdem.org/2016/schedule/track/geospatial/">geospatial devroom </a>was happening.<br />
As
said before we had a nice lineup with 15 presentations with topics
ranging from established GIS tools, Open Streetmap, 3D visualisation and
spatial databases.<br />
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
</div>
<div class="separator" style="clear: both; text-align: left;">
Anyway,
I did the first presentation on SAGA GIS, and I was happy to have some
very nice slides prepared by other members of the SAGA community.</div>
Next up was Hugo Mercier (Oslandia) who presented <a href="https://github.com/Ifsttar/Tempus">Tempus</a>. Planning multimodal transportation is a very hard problem, and it was nice to see that you can actually get the sources of the whole project. Next up was Astrid Emde presenting <a href="https://fosdem.org/2016/schedule/event/geo_mapbender3/">Mapbender</a>, an OSGeo project allowing one to create web SDI's easily. <br />
The next talk by Zeeshan Ali, "<a href="https://fosdem.org/2016/schedule/event/geo_gnome/">Build a geo-aware OS</a>" was one where I was looking
forward to : the talk is not one you usually encounter during
FOSS4G conferences, but an example of the crosspolination of
technologies you get at FOSDEM. It shows how location can now be used in Gnome (and other projects building on FreeDesktop) using common API's. <br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0Hcm_mV6hvoUX1leh8f1M8UyjVnJgCFb81RDjNilPL5zZF-xgvsNd27L61t2_sOm5AOiUeFrz1ugDM-uBKMvdbqsyUE5AvKIAugTETIF1rVSx4bGnYmX58gmoP0tD_pMz7AfT_i_CF0Up/s1600/20160131_105901.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0Hcm_mV6hvoUX1leh8f1M8UyjVnJgCFb81RDjNilPL5zZF-xgvsNd27L61t2_sOm5AOiUeFrz1ugDM-uBKMvdbqsyUE5AvKIAugTETIF1rVSx4bGnYmX58gmoP0tD_pMz7AfT_i_CF0Up/s320/20160131_105901.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Getting ready to add location using a raspberry zero</td></tr>
</tbody></table>
<div class="separator" style="clear: both; text-align: left;">
</div>
<div class="" style="clear: both; text-align: left;">
<br />
Next up we got a
full room for the presentation of Margherita Di Leo and Anne Ghisla
presenting the results of the Google Summer of code projects coached at
OSGeo.</div>
<div class="" style="clear: both; text-align: left;">
</div>
<div class="" style="clear: both; text-align: left;">
</div>
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdqg8TCINIpxyLCrOEaTTdvrNQtFVQCIsCyS1Ywz16xPK_SxlGI0d6mt2uMzO0TDnI0GmdNJ0zXK4i3ea6zkBWrjLQZt8JDREmIcnk19EUlpPO3aUqojp798VqtJlVWsLPDOwqE7i7NZfJ/s1600/20160131_123342.jpg" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdqg8TCINIpxyLCrOEaTTdvrNQtFVQCIsCyS1Ywz16xPK_SxlGI0d6mt2uMzO0TDnI0GmdNJ0zXK4i3ea6zkBWrjLQZt8JDREmIcnk19EUlpPO3aUqojp798VqtJlVWsLPDOwqE7i7NZfJ/s320/20160131_123342.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="color: #0000ee;"><u>This is how we like our devroom<span style="color: #0000ee;"><u>: full!</u></span></u></span></td></tr>
</tbody></table>
<div class="" style="clear: both; text-align: left;">
<br />
<br />
Everything got even more crowded for the next talk by
Tuukka Hastrup on <a href="https://fosdem.org/2016/schedule/event/geo_openjourney/https://fosdem.org/2016/schedule/event/geo_openjourney/">open journey planning</a>. As people kept trying to enter
our room even though it was full, I decided to play doorkeeper and
missed the actual talk. </div>
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<br /></div>
<div class="" style="clear: both; text-align: left;">
<br /></div>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdoeFlNAvyE1AtFYztmPR_y-g-D1PDi31vlZcxwvt_-fOVHb1B0iAXrzGGi1xRYZ9WM_68eY7w02IYF4YnSojFYt_EdQJTaeJvczwPmL4MXgPOUH7zEl3ntPpSgJ7G7uAYH_7FEbUk8hOf/s1600/20160131_120436.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdoeFlNAvyE1AtFYztmPR_y-g-D1PDi31vlZcxwvt_-fOVHb1B0iAXrzGGi1xRYZ9WM_68eY7w02IYF4YnSojFYt_EdQJTaeJvczwPmL4MXgPOUH7zEl3ntPpSgJ7G7uAYH_7FEbUk8hOf/s320/20160131_120436.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">For those who don't get it "FULL", stop entering!</td></tr>
</tbody></table>
<div class="" style="clear: both; text-align: left;">
But based on the feedback and the slides, I'm
really looking forward to the video of the talk.<br />
Still in a crowded room Ilya Zverev gave a talk about <a href="https://fosdem.org/2016/schedule/event/geo_mapsme/">mapping with OSM</a> with a phone . Rather than mapping using satellite imagery, it makes more sense to map when you are actually in the field. </div>
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The next talks were all focused on 3D. Thomas Bremer talked about how one could implement a <a href="https://fosdem.org/2016/schedule/event/geo_flight/">flight simulator in javascript.</a> He focused on the different components that could build such a simulator. I hope to see a demo of this soon. The next talk was on the integration of <a href="https://fosdem.org/2016/schedule/event/geo_ol3cesium/">Openlayers and Cesium</a>. I missed the talk myself (one has to get lunch at one point), but I got some nice feedback. The last talk in our 3D theme was Vincent Mora on <a href="https://fosdem.org/2016/schedule/event/geo_itowns/">iTowns</a>, showing impressive Lidar scans of large parts of Paris. Even though many of us are still struggling with 2D, a lot of data collection is now 3D and I think GIS systems still have to catch up.</div>
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The next block of four presentations were all on databases. Starting of with <a href="https://fosdem.org/2016/schedule/event/geo_mysql/">MySQL GIS.</a> I was pleasantly suprised by the presentation. MySQL and Oracle got some bad press in some open source communities, but I believe the way they are working on MySQL is examplary: not only is MySQL catching up quickly with other (spatial) databases, this is largely done by improving the underlying boost geometry library, which can be leveraged by other projects. Oracle is currently sponsoring 2 developers on that project.</div>
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Also <a href="https://fosdem.org/2016/schedule/event/geo_rasdaman/">Rasdaman</a>, a raster array database extension for PostgreSQL was presented. Even though their use cases may currently be 'far from the bed' of many developers, I like the fact that they are not only implementing a product, but also shaping the standards (OGC and ISO) on the way. </div>
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The third presentation focused on the geographical capabilities of a completely different type of database: <a href="https://fosdem.org/2016/schedule/event/geo_mongodb/">mongoDB</a>. I see a lot of possibilities of this database for geodata which is not as structured as classic databases. Nice to see their performance is improving.</div>
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The last presentation in the on <a href="https://fosdem.org/2016/schedule/event/geo_trajectory/">pivotal Greenplum database</a> was sometimes hard to follow, but I will definitely check it out further: I was not aware of the database, but it is a parallel database based on Postgresql, meaning that postgis functionality can be used, but also the extensions for trajectory data which were the topic of the presentation.</div>
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Closing the devroom was a presentation on <a href="https://fosdem.org/2016/schedule/event/geo_openaddresses/">geocoding</a> by Ervin Ruci, which is a topic where the performance of open solutions can still be improved a lot.</div>
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At the end of the day, the <a href="https://fosdem.org/2016/schedule/event/keynote_crisis_response_through_open_mapping/">closing keynote of FOSDEM</a>, which was given by the people of HOT OSM. A full <i>Janson</i> is always something special, and this is definitely true for a topic of a talk I'm so familiar with.</div>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlBtjdTiMelitFvC4n6mreVRiS_bxuRqgDBESUiNlq3nwhgeBnM0GTmYIVgQrqzt4lMHiXU0EMnvdNTj904RSE60i4wSs-TjivsAKKZi4sYX9cyMi_7rYcCuyXpZuY-b6R7WKriX_FReXK/s1600/20160131_171728.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlBtjdTiMelitFvC4n6mreVRiS_bxuRqgDBESUiNlq3nwhgeBnM0GTmYIVgQrqzt4lMHiXU0EMnvdNTj904RSE60i4wSs-TjivsAKKZi4sYX9cyMi_7rYcCuyXpZuY-b6R7WKriX_FReXK/s320/20160131_171728.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Closing Keynote about Humanitarian Openstreetmap</td></tr>
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To conclude, I believe the devroom at FOSDEM was a great event, and I really think it has its special role compared to other events such as FOSS4G and State of the Map - the chance to meet other open source communities.</div>
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Videos of the day should be available soon, thanks to the incredible FOSDEM video team and Anne Ghisla and Thomas Gratier who helped with the camera/organisation.</div>
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Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com3tag:blogger.com,1999:blog-1139831347829888451.post-65636484839478013862015-12-21T13:00:00.001-08:002016-01-15T01:53:48.470-08:00Schedule for the Geospatial devroom @FOSDEM 2016<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3QH6WdkqMVQRU5HVwEcZ3z95KpUwoFqgV90Ap67JX_6T5hZlgOtjmC0iZbEKqtECJac5RFBkv27vclWw35RGODP5gSPFZVj2a3RNf5caC_EnRRCJCd4iKwYgkM-tjXK-RUxcY0XNN8oC0/s1600/20150201111042.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="180" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3QH6WdkqMVQRU5HVwEcZ3z95KpUwoFqgV90Ap67JX_6T5hZlgOtjmC0iZbEKqtECJac5RFBkv27vclWw35RGODP5gSPFZVj2a3RNf5caC_EnRRCJCd4iKwYgkM-tjXK-RUxcY0XNN8oC0/s320/20150201111042.jpg" width="320" /></a>I have the honour to present to present to you the schedule for the <a href="https://fosdem.org/2016/schedule/track/geospatial/">geospatial devroom</a> at <a href="http://www.fosdem.org/">FOSDEM</a>, which will happen on Sunday 31/01/2016.<br />
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We have a nice lineup with some well known GIS tools, moving over to new developments happening at OSGeo and Open Streetmap. 3D visualisation is the topic of different presentations around noon. And should you prefer backend work, the afternoon has a lineup of no less than 4 different geospatial databases (MySQL, Rasdaman, Mongodb and Pivotal).<br />
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<table class="table table-striped table-bordered table-condensed">
<thead>
<tr>
<th colspan="2">Event</th>
<th>Speakers</th>
<th>Start</th>
<th>End</th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="6"><h3>Sunday</h3></td>
</tr>
<tr>
<td class="c3"> </td>
<td><a href="/2016/schedule/event/geo_saga/">Automating your Analysis with SAGA GIS</a></td>
<td><a href="/2016/schedule/speaker/johan_van_de_wauw/" class="quiet">Johan Van de Wauw</a></td>
<td><a class="quiet value-title" title="2016-01-31T09:30:00+01:00" href="/2016/schedule/day/sunday/#0930">09:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T09:55:00+01:00" href="/2016/schedule/day/sunday/#0955">09:55</a></td>
</tr>
<tr>
<td class="c4"> </td>
<td><a href="/2016/schedule/event/geo_tempus/">Tempus - a framework for multimodal trip planning</a></td>
<td><a href="/2016/schedule/speaker/hugo_mercier/" class="quiet">Hugo Mercier</a></td>
<td><a class="quiet value-title" title="2016-01-31T10:00:00+01:00" href="/2016/schedule/day/sunday/#1000">10:00</a></td>
<td><a class="quiet value-title" title="2016-01-31T10:25:00+01:00" href="/2016/schedule/day/sunday/#1025">10:25</a></td>
</tr>
<tr>
<td class="c5"> </td>
<td><a href="/2016/schedule/event/geo_mapbender3/">Mapbender3 <br><i>Create Your Own Geoportal Web Application And Service Repository</i></a></td>
<td><a href="/2016/schedule/speaker/astrid_emde/" class="quiet">Astrid Emde</a></td>
<td><a class="quiet value-title" title="2016-01-31T10:30:00+01:00" href="/2016/schedule/day/sunday/#1030">10:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T10:55:00+01:00" href="/2016/schedule/day/sunday/#1055">10:55</a></td>
</tr>
<tr>
<td class="c6"> </td>
<td><a href="/2016/schedule/event/geo_gnome/">Building a geo-aware OS</a></td>
<td><a href="/2016/schedule/speaker/zeeshan_ali_khattak/" class="quiet">Zeeshan Ali (Khattak)</a></td>
<td><a class="quiet value-title" title="2016-01-31T11:00:00+01:00" href="/2016/schedule/day/sunday/#1100">11:00</a></td>
<td><a class="quiet value-title" title="2016-01-31T11:25:00+01:00" href="/2016/schedule/day/sunday/#1125">11:25</a></td>
</tr>
<tr>
<td class="c7"> </td>
<td><a href="/2016/schedule/event/geo_gsoc/">Results of Google Summer of Code 2015 at OSGeo</a></td>
<td><a href="/2016/schedule/speaker/margherita_di_leo/" class="quiet">Margherita Di leo</a>, <a href="/2016/schedule/speaker/anne_ghisla/" class="quiet">Anne Ghisla</a></td>
<td><a class="quiet value-title" title="2016-01-31T11:30:00+01:00" href="/2016/schedule/day/sunday/#1130">11:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T11:55:00+01:00" href="/2016/schedule/day/sunday/#1155">11:55</a></td>
</tr>
<tr>
<td class="c8"> </td>
<td><a href="/2016/schedule/event/geo_openjourney/">100% open journey planning <br><i>Open source, open APIs, open data</i></a></td>
<td><a href="/2016/schedule/speaker/tuukka_hastrup/" class="quiet">Tuukka Hastrup</a></td>
<td><a class="quiet value-title" title="2016-01-31T12:00:00+01:00" href="/2016/schedule/day/sunday/#1200">12:00</a></td>
<td><a class="quiet value-title" title="2016-01-31T12:25:00+01:00" href="/2016/schedule/day/sunday/#1225">12:25</a></td>
</tr>
<tr>
<td class="c9"> </td>
<td><a href="/2016/schedule/event/geo_mapsme/">Mapping with a phone<br><i>Why is it so hard to edit OpenStreetMap on a phone, and how MAPS.ME solves this problem</i></a></td>
<td><a href="/2016/schedule/speaker/ilya_zverev/" class="quiet">Ilya Zverev</a></td>
<td><a class="quiet value-title" title="2016-01-31T12:30:00+01:00" href="/2016/schedule/day/sunday/#1230">12:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T12:55:00+01:00" href="/2016/schedule/day/sunday/#1255">12:55</a></td>
</tr>
<tr>
<td class="c10"> </td>
<td><a href="/2016/schedule/event/geo_flight/">OSM + SRTM + WebGL = Flight Simulator</a></td>
<td><a href="/2016/schedule/speaker/thomas_bremer/" class="quiet">Thomas Bremer</a></td>
<td><a class="quiet value-title" title="2016-01-31T13:00:00+01:00" href="/2016/schedule/day/sunday/#1300">13:00</a></td>
<td><a class="quiet value-title" title="2016-01-31T13:25:00+01:00" href="/2016/schedule/day/sunday/#1325">13:25</a></td>
</tr>
<tr>
<td class="c1"> </td>
<td><a href="/2016/schedule/event/geo_ol3cesium/">OL3-Cesium, 3D for OpenLayers</a></td>
<td><a href="/2016/schedule/speaker/guillaume_beraudo/" class="quiet">Guillaume Beraudo</a></td>
<td><a class="quiet value-title" title="2016-01-31T13:30:00+01:00" href="/2016/schedule/day/sunday/#1330">13:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T13:55:00+01:00" href="/2016/schedule/day/sunday/#1355">13:55</a></td>
</tr>
<tr>
<td class="c2"> </td>
<td><a href="/2016/schedule/event/geo_itowns/">iTowns, an opensource web framework for 3D visualization</a></td>
<td><a href="/2016/schedule/speaker/vincent_mora/" class="quiet">Vincent Mora</a></td>
<td><a class="quiet value-title" title="2016-01-31T14:00:00+01:00" href="/2016/schedule/day/sunday/#1400">14:00</a></td>
<td><a class="quiet value-title" title="2016-01-31T14:25:00+01:00" href="/2016/schedule/day/sunday/#1425">14:25</a></td>
</tr>
<tr>
<td class="c3"> </td>
<td><a href="/2016/schedule/event/geo_mysql/">Introduction to MySQL GIS<br><i>A crash course</i></a></td>
<td><a href="/2016/schedule/speaker/norvald_h_ryeng/" class="quiet">Norvald H. Ryeng</a></td>
<td><a class="quiet value-title" title="2016-01-31T14:30:00+01:00" href="/2016/schedule/day/sunday/#1430">14:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T14:55:00+01:00" href="/2016/schedule/day/sunday/#1455">14:55</a></td>
</tr>
<tr>
<td class="c4"> </td>
<td><a href="/2016/schedule/event/geo_rasdaman/">Managing Spatio-Temporal Big Data through Scalable OGC Web Services</a></td>
<td><a href="/2016/schedule/speaker/alex_dumitru/" class="quiet">Alex Dumitru</a></td>
<td><a class="quiet value-title" title="2016-01-31T15:00:00+01:00" href="/2016/schedule/day/sunday/#1500">15:00</a></td>
<td><a class="quiet value-title" title="2016-01-31T15:25:00+01:00" href="/2016/schedule/day/sunday/#1525">15:25</a></td>
</tr>
<tr>
<td class="c5"> </td>
<td><a href="/2016/schedule/event/geo_mongodb/">Geospatial and Me<br><i>How to fast exploit geospatial data on apps</i></a></td>
<td><a href="/2016/schedule/speaker/norberto_leite/" class="quiet">Norberto Leite</a></td>
<td><a class="quiet value-title" title="2016-01-31T15:30:00+01:00" href="/2016/schedule/day/sunday/#1530">15:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T15:55:00+01:00" href="/2016/schedule/day/sunday/#1555">15:55</a></td>
</tr>
<tr>
<td class="c6"> </td>
<td><a href="/2016/schedule/event/geo_trajectory/">Trajectory: A novel geospatial data model of Pivotal GPDB</a></td>
<td><a href="/2016/schedule/speaker/kuien_liu/" class="quiet">Kuien Liu</a></td>
<td><a class="quiet value-title" title="2016-01-31T16:00:00+01:00" href="/2016/schedule/day/sunday/#1600">16:00</a></td>
<td><a class="quiet value-title" title="2016-01-31T16:25:00+01:00" href="/2016/schedule/day/sunday/#1625">16:25</a></td>
</tr>
<tr>
<td class="c7"> </td>
<td><a href="/2016/schedule/event/geo_openaddresses/">Geocoding the World with openaddresses.io<br><i>Geocoding on the cloud</i></a></td>
<td><a href="/2016/schedule/speaker/ervin_ruci/" class="quiet">Ervin Ruci</a></td>
<td><a class="quiet value-title" title="2016-01-31T16:30:00+01:00" href="/2016/schedule/day/sunday/#1630">16:30</a></td>
<td><a class="quiet value-title" title="2016-01-31T16:50:00+01:00" href="/2016/schedule/day/sunday/#1650">16:50</a></td>
</tr>
</tbody>
</table>
<b><i>update</i></b><br />
To close the day we can head of to the the Closing keynote of FOSDEM which will be given by Blake Girardot (HOT OSM)<br />
<table class="table table-striped table-bordered table-condensed" style="background-color: white; border-bottom-color: rgb(221, 221, 221); border-bottom-style: solid; border-radius: 4px; border-right-color: rgb(221, 221, 221); border-right-style: solid; border-spacing: 0px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-width: 1px 1px 1px 0px; color: #333333; font-family: 'DejaVu Sans', Arial, Helvetica, sans-serif; font-size: 14px; line-height: 16px; margin-bottom: 20px; max-width: 100%;"><tbody>
<tr><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2016/schedule/event/keynote_crisis_response_through_open_mapping/" style="color: #3479c4; text-decoration: none;">Putting 8 Million People on the Map:<br /><i>Revolutionizing crisis response through open mapping tools</i></a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><br /></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;">17:00 - 17:50</td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2016/schedule/room/janson/" style="color: #3479c4; text-decoration: none;">Janson</a></td></tr>
</tbody></table>
<br />
For all of you who don't know FOSDEM: FOSDEM is a free and non-commercial event bringing together about 5000 developers in Brussels, Belgium. The goal is to provide open source software developers and communities a place to meet and share thoughts. The participation is free of charge, although donations are welcome. The next edition will take place the last weekend ofJanuary 30 - 31 2016. This year for the second time there will be a Geospatial devroom on Sunday 31/1/2016.<br />
<br />
Hope to see all of you in Brussels!<br />
<br />Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com1tag:blogger.com,1999:blog-1139831347829888451.post-40288222330838148212015-10-28T15:06:00.000-07:002015-11-02T02:06:28.860-08:00Call For presentations Geospatial devroom @FOSDEM 2016<div class="" id="magicdomid3">
</div>
<div class="" id="magicdomid4">
<span class="i"><i>Please forward!</i></span></div>
<div class="" id="magicdomid5">
<br /></div>
<div class="" id="magicdomid6">
<span class="b"><b>FOSDEM</b></span><span class=""> is a free </span><span class="author-g-by86201c4nyim23w">and non-commercial</span><span class="">
event bringing together about 5000 developers in Brussels, Belgium. The
goal is to provide open source software developers and communities a
place to meet</span><span class="author-g-by86201c4nyim23w"> and share thoughts</span><span class="">.</span><span class="author-g-by86201c4nyim23w"> The participation is free of charge, although donations are welcome.</span><span class=""> The next edition will take place the </span><span class="author-g-6xhltf2w94rydop6">last </span><span class="">weekend </span><span class="author-g-6xhltf2w94rydop6">of </span><span class="author-g-by86201c4nyim23w b"><b>J</b></span><span class="author-g-6xhltf2w94rydop6 b"><b>anuary </b></span><span class="b"><b>3</b></span><span class="author-g-6xhltf2w94rydop6 b"><b>0</b></span><span class="b"><b> - </b></span><span class="author-g-6xhltf2w94rydop6 b"><b>31</b></span><span class="author-g-by86201c4nyim23w b"><b> </b></span><span class="b"><b>201</b></span><span class="author-g-6xhltf2w94rydop6 b"><b>6</b></span><span class="">. This year for the </span><span class="author-g-6xhltf2w94rydop6">second </span><span class="">time there will be a </span><span class="author-g-by86201c4nyim23w b"><b>G</b></span><span class="b"><b>eospatial </b></span><span class="author-g-by86201c4nyim23w b"><b>d</b></span><span class="b"><b>evroom</b></span><span class=""> on</span><span class="b"><b> Sunday </b></span><span class="author-g-6xhltf2w94rydop6 b"><b>31/1</b></span><span class="b"><b>/201</b></span><span class="author-g-6xhltf2w94rydop6 b"><b>6</b></span><span class="author-g-6xhltf2w94rydop6">,organised by members of the OSGeo, Locationtech and OpenStreetMap communities.</span></div>
<div class="" id="magicdomid7">
<br /></div>
<div class="" id="magicdomid8">
<span class="">Geospatial technology </span><span class="author-g-by86201c4nyim23w">is </span><span class="">becom</span><span class="author-g-by86201c4nyim23w">ing</span><span class=""> </span><span class="author-g-by86201c4nyim23w">rapidly</span><span class=""> mainstream. The idea</span><span class="author-g-by86201c4nyim23w"> underpinning the geospatial devroom</span><span class=""> is bring</span><span class="author-g-by86201c4nyim23w">ing</span><span class=""> together </span><span class="author-g-by86201c4nyim23w">developers</span><span class=""> with different backgrounds to </span><span class="author-g-by86201c4nyim23w">disclose</span><span class=""> the opportunities</span><span class="author-g-by86201c4nyim23w"> offered by cutting-edge open source</span><span class=""> </span><span class="author-g-by86201c4nyim23w">g</span><span class="">eospatial</span><span class="author-g-by86201c4nyim23w"> technologies</span><span class="">. </span><span class="author-g-wk5x1m7p0n17onvh">Due
to the success of last years devroom, a Belgium local chapter of OSGeo,
OSGeo.be was founded, and is now taking part of the organisation of the
devroom as driving community.</span></div>
<div class="" id="magicdomid9">
<br /></div>
<div class="" id="magicdomid10">
<span class="">The </span><span class="author-g-by86201c4nyim23w b"><b>G</b></span><span class="b"><b>eospatial devroom</b></span><span class=""> is the place to talk about </span><span class="author-g-by86201c4nyim23w">the state of the art of </span><span class="">open, geo-related data</span><span class="author-g-by86201c4nyim23w">, free and open source geospatial</span><span class=""> software and </span><span class="author-g-by86201c4nyim23w">its</span><span class=""> ecosystem. This includes standards and tools, e.g. spatial databases, online mapping</span><span class="author-g-by86201c4nyim23w"> tools</span><span class="">, geospatial services, used for collecting, storing, delivering, analysing, and visualizing </span><span class="author-g-by86201c4nyim23w">geodata</span><span class="">. </span><span class="author-g-by86201c4nyim23w">We welcome submissions about: </span></div>
<div class="" id="magicdomid11">
<br /></div>
<div class="" id="magicdomid12">
<ul class="list-bullet1">
<li><span class="">Web and desktop GIS applications</span></li>
</ul>
</div>
<div class="" id="magicdomid13">
<ul class="list-bullet1">
<li><span class="">Interoperable geospatial web services and specifications</span></li>
</ul>
</div>
<div class="" id="magicdomid14">
<ul class="list-bullet1">
<li><span class="">Collection of data using sensors/drones/satellites</span></li>
</ul>
</div>
<div class="" id="magicdomid15">
<ul class="list-bullet1">
<li><span class="">Open hardware for geospatial applications</span></li>
</ul>
</div>
<div class="" id="magicdomid16">
<ul class="list-bullet1">
<li><span class="">Geo-analytic algorithms/libraries</span></li>
</ul>
</div>
<div class="" id="magicdomid17">
<ul class="list-bullet1">
<li><span class="">Geospatial extensions for classical databases (indexes, operations)</span><span class="author-g-6xhltf2w94rydop6"> and dedicated databases</span></li>
</ul>
</div>
<div class="" id="magicdomid18">
<ul class="list-bullet1">
<li><span class="author-g-6xhltf2w94rydop6">Collaborative editing/versioning of geodata</span></li>
</ul>
</div>
<div class="" id="magicdomid19">
<ul class="list-bullet1">
<li><span class="author-g-6xhltf2w94rydop6">Big geodata, scalable GIS applications</span></li>
</ul>
</div>
<div class="" id="magicdomid20">
<ul class="list-bullet1">
<li><span class="author-g-6xhltf2w94rydop6">Volunteered Geograpic information - Crowdsourced data</span></li>
</ul>
</div>
<div class="" id="magicdomid21">
<br /></div>
<div class="" id="magicdomid22">
<span class="b"><b>HOW TO SUBMIT YOUR PROPOSAL</b></span><span class="author-g-by86201c4nyim23w b"><b> FOR A TALK</b></span></div>
<div class="" id="magicdomid23">
<br /></div>
<div class="" id="magicdomid24">
<span class="">Are
you thrilled to present your work to other open source developers?
Would you like to run a discussion? Any other ideas? Please submit your
proposal </span><span class="author-g-by86201c4nyim23w">using</span><span class=""> the Pentabarf event planning tool at:</span></div>
<div class="" id="magicdomid25">
<br /></div>
<div class="" id="magicdomid26">
<span class=" url"><a href="https://penta.fosdem.org/submission/FOSDEM16">https://penta.fosdem.org/submission/FOSDEM1</a></span><span class="author-g-6xhltf2w94rydop6 url"><a href="https://penta.fosdem.org/submission/FOSDEM16">6</a></span></div>
<div class="" id="magicdomid27">
<br /></div>
<div class="" id="magicdomid28">
<span class="author-g-by86201c4nyim23w">M</span><span class="">ake sure to select the </span><span class="b"><b>'Geospatial devroom' </b></span><span class="">as 'Track'. </span><span class="author-g-by86201c4nyim23w">Please,</span><span class=""> </span><span class="b i u"><b><i><u>specify</u></i></b></span><span class=""> in the notes if you prefer for your presentation</span><span class="author-g-by86201c4nyim23w"> either</span><span class=""> a </span><span class="b"><b>short timeslot</b></span><span class=""> (lightning talks ~10 minutes) or a </span><span class="b"><b>long timeslot</b></span><span class=""> (20 minutes presentation + discussion).</span><span class="author-g-by86201c4nyim23w"> However, note that time slots are indicative and will be assigned according to the needs of the session.</span></div>
<div class="" id="magicdomid29">
<br /></div>
<div class="" id="magicdomid30">
<span class="">The </span><span class="b"><b>DEADLINE</b></span><span class=""> for submissions is </span><span class="author-g-by86201c4nyim23w">Tuesday </span><span class="">**</span><span class="b"><b>1</b></span><span class="author-g-by86201c4nyim23w b"><b>st</b></span><span class="b"><b> December 201</b></span><span class="author-g-6xhltf2w94rydop6 b"><b>5</b></span><span class="">**</span><span class="author-g-6xhltf2w94rydop6">. Notification</span><span class="author-g-by86201c4nyim23w"> of acceptance</span><span class="author-g-6xhltf2w94rydop6"> will be </span><span class="author-g-by86201c4nyim23w">sent</span><span class="author-g-6xhltf2w94rydop6"> </span><span class="author-g-by86201c4nyim23w">to the Authors by F</span><span class="author-g-6xhltf2w94rydop6">riday 11/12/201</span><span class="author-g-by86201c4nyim23w">5 at the latest.</span></div>
<div class="" id="magicdomid31">
<br /></div>
<div class="" id="magicdomid32">
<span class="">Should you have any questions, please do not hesitate to get in touch with the organisers of the devroom at </span><span class="i"><i>fosdem-geospatial@gisky.be</i></span><span class="">!</span></div>
<br />
<div class="" id="magicdomid35">
<span class="i"><i>Johan Van de Wauw</i></span></div>
<div class="" id="magicdomid36">
<span class="i"><i>Margherita Di Leo</i></span></div>
<div class="" id="magicdomid37">
<span class="i"><i>Astrid Emde</i></span></div>
<div class="" id="magicdomid38">
<span class="i"><i>Anne Ghisla</i></span></div>
<div class="" id="magicdomid39">
<span class="i"><i>Martin Hammitzsch</i></span></div>
<div class="" id="magicdomid40">
<span class="i"><i>Andy Petrella </i></span></div>
<div class="" id="magicdomid41">
<span class="i"><i>Dirk Frigne</i></span></div>
<div class="" id="magicdomid42">
<span class="author-g-6xhltf2w94rydop6 i"><i>Olivier Courtin</i></span></div>
<div class="" id="magicdomid43">
<span class="author-g-6xhltf2w94rydop6 i"><i>Thomas Gratier</i></span></div>
<div class="" id="magicdomid44">
<br /></div>
Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-34904291802705265942015-04-27T10:38:00.000-07:002015-04-27T15:36:50.392-07:00An update on Debian and Ubuntu GISLast week was an important week for Debian and Ubuntu: both distributions had a release. Debian released its new stable release "8.0" nicknamed "jessie".<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://bits.debian.org/2015/04/jessie-released.html"><img border="0" src="https://bits.debian.org/static/images/banner_jessie.png" /></a></div>
<br />
<br />
Deep down the <a href="https://www.debian.org/releases/jessie/amd64/release-notes/">release notes</a> you will find a sentence which may be interesting for anyone interested in GIS on this platform:<br />
<br />
<blockquote class="tr_bq">
<span style="font-family: 'liberation sans', 'Myriad ', 'Bitstream Vera Sans', 'Lucida Grande', 'Luxi Sans', 'Trebuchet MS', helvetica, verdana, arial, sans-serif; line-height: 19.2000007629395px;">During the jessie development cycle many changes from UbuntuGIS were merged back into Debian GIS. The collaboration with UbuntuGIS and OSGeo-Live projects was improved, resulting in new packages and contributors. Visit </span><a class="ulink" href="http://blends.debian.org/gis/tasks" style="color: #00207a; font-family: 'liberation sans', 'Myriad ', 'Bitstream Vera Sans', 'Lucida Grande', 'Luxi Sans', 'Trebuchet MS', helvetica, verdana, arial, sans-serif; line-height: 19.2000007629395px; text-decoration: none;" target="_top">Debian GIS tasks pages</a><span style="font-family: 'liberation sans', 'Myriad ', 'Bitstream Vera Sans', 'Lucida Grande', 'Luxi Sans', 'Trebuchet MS', helvetica, verdana, arial, sans-serif; line-height: 19.2000007629395px;"> to see the full range of GIS software inside Debian and the </span><a class="ulink" href="https://wiki.debian.org/DebianGis" style="color: #00207a; font-family: 'liberation sans', 'Myriad ', 'Bitstream Vera Sans', 'Lucida Grande', 'Luxi Sans', 'Trebuchet MS', helvetica, verdana, arial, sans-serif; line-height: 19.2000007629395px; text-decoration: none;" target="_top">Debian GIS homepage</a><span style="font-family: 'liberation sans', 'Myriad ', 'Bitstream Vera Sans', 'Lucida Grande', 'Luxi Sans', 'Trebuchet MS', helvetica, verdana, arial, sans-serif; line-height: 19.2000007629395px;"> for more information.</span></blockquote>
This means that in jessie you will find a number of new packages (owslib, pgrouting,spatialite-gui,tinyows) and updates to many of the large well known packages: gdal, mapserver, postgis, qgis, saga and grass, but also to openstreetmap related packages such as josm.<br />
<br />
If you are looking for a stable distribution which offers many gis packages out of the box, debian jessie is definitely the way to go, as it will be supported for five years.<br />
<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.omgubuntu.co.uk/wp-content/uploads/2015/04/tile11-300x171.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://www.omgubuntu.co.uk/wp-content/uploads/2015/04/tile11-300x171.jpg" /></a></div>
<br />
Just a few days before the release of jessie also ubuntu had a new release: 15.04 nicknamed "vivid". Much of the work that was done in Debian for jessie is included in this release (since ubuntu is based on debian), and some packages even got synced from the development versions of Debian: you will find that vivid contains the current release for eg gdal, postgis and saga, without having to rely on a third party archive!<br />
<br />
All of this was possible because DebianGIS, and Sebastic in particular have been very active. Now that jessie is released, more energy will go into packaging new packages and versions, so if your pet GIS project is not in Debian/Ubuntu yet (or not up-to-date as you would like), it is the ideal moment to <a href="https://wiki.debian.org/DebianGis">join</a>!<br />
<br />Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-55254836473178598512015-01-22T08:05:00.000-08:002015-01-23T01:09:27.394-08:00Two days of geo-goodness at FOSDEM 31/1 - 1/2<br />
You may already know that there is a great lineup for the geospatial devroom at FOSDEM on synday: yes, we actually have 22 presenters from a large number of different countries (even outside Europe!).<br />
<br />
<table class="table table-striped table-bordered table-condensed" style="background-color: white; border-bottom-color: rgb(221, 221, 221); border-bottom-style: solid; border-radius: 4px; border-right-color: rgb(221, 221, 221); border-right-style: solid; border-spacing: 0px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-width: 1px 1px 1px 0px; color: #333333; font-family: 'DejaVu Sans', Arial, Helvetica, sans-serif; font-size: 14px; line-height: 16px; margin-bottom: 20px; max-width: 100%; width: 967px;"><tbody>
<tr><td class="c3" style="background-color: rgb(224, 228, 204) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/intro_geospatial/" style="color: #3479c4; text-decoration: none;">Intro geospatial devroom</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/johan_van_de_wauw/" style="text-decoration: none;">Johan Van de Wauw</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0900" style="text-decoration: none;" title="2015-02-01T09:00:00+01:00">09:00</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0905" style="text-decoration: none;" title="2015-02-01T09:05:00+01:00">09:05</a></td></tr>
<tr><td class="c4" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/lifewatch/" style="color: #3479c4; text-decoration: none;">Use of OSS in the Lifewatch biodiversity research project</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/julien_radoux/" style="text-decoration: none;">Julien Radoux</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0905" style="text-decoration: none;" title="2015-02-01T09:05:00+01:00">09:05</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0915" style="text-decoration: none;" title="2015-02-01T09:15:00+01:00">09:15</a></td></tr>
<tr><td class="c5" style="background-color: rgb(250, 105, 0) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/qgis_landslide/" style="color: #3479c4; text-decoration: none;">QGIS Tool for Landslide Hazard Assessment</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/darya_golovko/" style="text-decoration: none;">Darya Golovko</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0915" style="text-decoration: none;" title="2015-02-01T09:15:00+01:00">09:15</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0925" style="text-decoration: none;" title="2015-02-01T09:25:00+01:00">09:25</a></td></tr>
<tr><td class="c6" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/qgis_geopunt/" style="color: #3479c4; text-decoration: none;">Opensource Desktop GIS at Regional and Local goverments in Flanders<br /><i>Integrating Govermental webservices into QGIS</i></a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/kay_warrie/" style="text-decoration: none;">Kay Warrie</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0925" style="text-decoration: none;" title="2015-02-01T09:25:00+01:00">09:25</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0935" style="text-decoration: none;" title="2015-02-01T09:35:00+01:00">09:35</a></td></tr>
<tr><td class="c7" style="background-color: rgb(231, 163, 80) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/bridging_simulation_gis/" style="color: #3479c4; text-decoration: none;">Bridging the gap between simulation and GIS</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/vincent_mora/" style="text-decoration: none;">Vincent Mora</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#0940" style="text-decoration: none;" title="2015-02-01T09:40:00+01:00">09:40</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1005" style="text-decoration: none;" title="2015-02-01T10:05:00+01:00">10:05</a></td></tr>
<tr><td class="c8" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/grass_7/" style="color: #3479c4; text-decoration: none;">GRASS GIS 7: Efficiently processing big geospatial data</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/markus_neteler/" style="text-decoration: none;">Markus Neteler</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1010" style="text-decoration: none;" title="2015-02-01T10:10:00+01:00">10:10</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1030" style="text-decoration: none;" title="2015-02-01T10:30:00+01:00">10:30</a></td></tr>
<tr><td class="c9" style="background-color: rgb(195, 219, 185) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/grass_api/" style="color: #3479c4; text-decoration: none;">GRASS Development APIs<br /><i>Lifting the fog on the different ways to develop for GRASS</i></a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/moritz_lennert/" style="text-decoration: none;">Moritz Lennert</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1030" style="text-decoration: none;" title="2015-02-01T10:30:00+01:00">10:30</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1045" style="text-decoration: none;" title="2015-02-01T10:45:00+01:00">10:45</a></td></tr>
<tr><td class="c10" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/openstandards_biggeodata/" style="color: #3479c4; text-decoration: none;">Open Standards for Big Geo Data</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/peter_baumann/" style="text-decoration: none;">Peter Baumann</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1050" style="text-decoration: none;" title="2015-02-01T10:50:00+01:00">10:50</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1115" style="text-decoration: none;" title="2015-02-01T11:15:00+01:00">11:15</a></td></tr>
<tr><td class="c1" style="background-color: rgb(105, 210, 231) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/scotty/" style="color: #3479c4; text-decoration: none;">Scotty, I need a data in three minutes! (Or we're all dead!!)<br /><i>Just the right data at just the right time</i></a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/andrew_ross/" style="text-decoration: none;">Andrew Ross</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1120" style="text-decoration: none;" title="2015-02-01T11:20:00+01:00">11:20</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1145" style="text-decoration: none;" title="2015-02-01T11:45:00+01:00">11:45</a></td></tr>
<tr><td class="c2" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/geotrellis_spark/" style="color: #3479c4; text-decoration: none;">Distributed tile processing with GeoTrellis and Spark</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/rob_emanuele/" style="text-decoration: none;">Rob Emanuele</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1150" style="text-decoration: none;" title="2015-02-01T11:50:00+01:00">11:50</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1215" style="text-decoration: none;" title="2015-02-01T12:15:00+01:00">12:15</a></td></tr>
<tr><td class="c3" style="background-color: rgb(224, 228, 204) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/geotrellis_geotiff/" style="color: #3479c4; text-decoration: none;">GeoTrellis and the GeoTiff File Format</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/johan_stenberg/" style="text-decoration: none;">Johan Stenberg</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1215" style="text-decoration: none;" title="2015-02-01T12:15:00+01:00">12:15</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1225" style="text-decoration: none;" title="2015-02-01T12:25:00+01:00">12:25</a></td></tr>
<tr><td class="c4" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/habitat/" style="color: #3479c4; text-decoration: none;">Habitat - a programmable personal geospatial datatore</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/richard_pope/" style="text-decoration: none;">Richard Pope</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1230" style="text-decoration: none;" title="2015-02-01T12:30:00+01:00">12:30</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1240" style="text-decoration: none;" title="2015-02-01T12:40:00+01:00">12:40</a></td></tr>
<tr><td class="c5" style="background-color: rgb(250, 105, 0) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/daybed/" style="color: #3479c4; text-decoration: none;">Daybed<br /><i>spatial backend as a service !</i></a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/mathieu_leplatre/" style="text-decoration: none;">Mathieu Leplatre</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1245" style="text-decoration: none;" title="2015-02-01T12:45:00+01:00">12:45</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1310" style="text-decoration: none;" title="2015-02-01T13:10:00+01:00">13:10</a></td></tr>
<tr><td class="c6" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/geomajas/" style="color: #3479c4; text-decoration: none;">Taking Web GIS beyond Google Maps with the Geomajas Client and Spatial Application Server<br /><i>Mapping stuff with Java, GWT and Javascript</i></a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/frank_maes/" style="text-decoration: none;">Frank Maes</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1315" style="text-decoration: none;" title="2015-02-01T13:15:00+01:00">13:15</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1340" style="text-decoration: none;" title="2015-02-01T13:40:00+01:00">13:40</a></td></tr>
<tr><td class="c7" style="background-color: rgb(231, 163, 80) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/glob3/" style="color: #3479c4; text-decoration: none;">Mobile Map Technology<br /><i>Developing Mobile Multiplatform 3d maps</i></a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/manuel_de_la_calle_alonso/" style="text-decoration: none;">Manuel de la Calle Alonso</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1345" style="text-decoration: none;" title="2015-02-01T13:45:00+01:00">13:45</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1410" style="text-decoration: none;" title="2015-02-01T14:10:00+01:00">14:10</a></td></tr>
<tr><td class="c8" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/potree/" style="color: #3479c4; text-decoration: none;">Potree - Rendering Large Point Clouds in Web Browsers</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/markus_schutz/" style="text-decoration: none;">Markus Schütz</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1415" style="text-decoration: none;" title="2015-02-01T14:15:00+01:00">14:15</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1425" style="text-decoration: none;" title="2015-02-01T14:25:00+01:00">14:25</a></td></tr>
<tr><td class="c9" style="background-color: rgb(195, 219, 185) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/ol3js/" style="color: #3479c4; text-decoration: none;">OpenLayers 3: A unique web-mapping library</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/eric_lemoine/" style="text-decoration: none;">Éric Lemoine</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1430" style="text-decoration: none;" title="2015-02-01T14:30:00+01:00">14:30</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1455" style="text-decoration: none;" title="2015-02-01T14:55:00+01:00">14:55</a></td></tr>
<tr><td class="c10" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/ol3js_cesium/" style="color: #3479c4; text-decoration: none;">Ol3-Cesium : 3D for OpenLayers map<br /><i>An exciting library for automatically bringing 3D to your map</i></a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/guillaume_beraudo/" style="text-decoration: none;">Guillaume Beraudo</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1455" style="text-decoration: none;" title="2015-02-01T14:55:00+01:00">14:55</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1510" style="text-decoration: none;" title="2015-02-01T15:10:00+01:00">15:10</a></td></tr>
<tr><td class="c1" style="background-color: rgb(105, 210, 231) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/overpass/" style="color: #3479c4; text-decoration: none;">Overpass API<br /><i>A service to query OpenStreetMap data</i></a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/roland_olbricht/" style="text-decoration: none;">Roland Olbricht</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1515" style="text-decoration: none;" title="2015-02-01T15:15:00+01:00">15:15</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1540" style="text-decoration: none;" title="2015-02-01T15:40:00+01:00">15:40</a></td></tr>
<tr><td class="c2" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/tempus/" style="color: #3479c4; text-decoration: none;">Tempus: a framework for multimodal trip planning</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/hugo_mercier/" style="text-decoration: none;">Hugo Mercier</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1545" style="text-decoration: none;" title="2015-02-01T15:45:00+01:00">15:45</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1610" style="text-decoration: none;" title="2015-02-01T16:10:00+01:00">16:10</a></td></tr>
<tr><td class="c3" style="background-color: rgb(224, 228, 204) !important; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/douglas_peucker/" style="color: #3479c4; text-decoration: none;">Douglas-Peucker updated<br /><i>or do you want to reduce your data</i></a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/stephane_winnepenninckx/" style="text-decoration: none;">Stephane Winnepenninckx</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1615" style="text-decoration: none;" title="2015-02-01T16:15:00+01:00">16:15</a></td><td style="border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1640" style="text-decoration: none;" title="2015-02-01T16:40:00+01:00">16:40</a></td></tr>
<tr><td class="c4" style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-radius: 0px 0px 0px 4px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a href="https://fosdem.org/2015/schedule/event/picotcp_networks/" style="color: #3479c4; text-decoration: none;">PicoTCP on Mobile Ad Hoc networks</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet" href="https://fosdem.org/2015/schedule/speaker/brecht_van_cauwenberghe/" style="text-decoration: none;">Brecht Van Cauwenberghe</a></td><td style="background-color: #f9f9f9; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1645" style="text-decoration: none;" title="2015-02-01T16:45:00+01:00">16:45</a></td><td style="background-color: #f9f9f9; border-bottom-right-radius: 4px; border-left-color: rgb(221, 221, 221); border-left-style: solid; border-left-width: 1px; border-top-color: rgb(221, 221, 221); border-top-style: solid; border-top-width: 1px; line-height: 20px; padding: 4px 5px; vertical-align: top;"><a class="quiet value-title" href="https://fosdem.org/2015/schedule/day/sunday/#1655" style="text-decoration: none;" title="2015-02-01T16:55:00+01:00">16:55</a></td></tr>
</tbody></table>
Full schedule <a href="https://fosdem.org/2015/schedule/track/geospatial/">here</a>.<br />
But apart from the lineup on Sunday, also Saterday actually has a number of interesting geo-related talks as well:<br />
<br />
10:35 - 10:55 (distributions devroom)<br />
<ul>
<li><a href="https://fosdem.org/2015/schedule/event/from_debian_gis_to_osgeo_live_and_back/">From Debian-GIS to OSGeo live and back</a> (yep shameless self-promotion)</li>
</ul>
12:00 - 12:50 (hardware track)<br />
<ul>
<li><a href="https://fosdem.org/2015/schedule/event/gps_watch/">A GPS watch made of free software and hardware</a></li>
</ul>
<br />
14:00 - 14:25 (graph devroom)<br />
<ul>
<li><a href="https://fosdem.org/2015/schedule/event/osm2graphdb/">From Open Street Map to your preferred graph database...</a></li>
</ul>
15:00 - 15:50 (hardware track)<br />
<ul>
<li>
<a href="https://fosdem.org/2015/schedule/event/freecad/">FreeCAD<br /><i>a hackable design platform</i></a> </li>
</ul>
And I'm sure you will probably find many other interesting presentations in one of the other <a href="https://fosdem.org/2015/schedule/events/">550 lectures</a>. So hope to see many of you at <a href="https://fosdem.org/">FOSDEM</a>!<br />
<br />
Update<br />
I noted there is another geo-related talk on Sunday, unfortunately in parallel with the program for the geospatial devroom:<br />
<br /><ul>
<li><a href="https://fosdem.org/2015/schedule/event/web_mapping_mysql/">Web mapping with MySQL</a><br /> An introduction to MySQL GIS</li>
</ul>
Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com1tag:blogger.com,1999:blog-1139831347829888451.post-19582150811233234312014-12-18T11:44:00.001-08:002014-12-18T14:12:20.268-08:00FOSDEM geospatial devroom: schedule announced!<a href="http://www.percona.com/blog/wp-content/uploads/2014/10/FOSDEM-2015.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.percona.com/blog/wp-content/uploads/2014/10/FOSDEM-2015.jpg" /></a>I'm excited to announce that the schedule for the first edition of the geospatial devroom at <a href="http://www.fosdem.org/">FOSDEM</a> is ready! I was very surprised by the number of people who submitted proposals for presentations and the quality of the proposals. All speakers have now confirmed, so I'm really happy I can share the schedule with all of you.<br />
<br />
<b><br /></b>
<b>Head over to:</b><br />
<b><a href="https://fosdem.org/2015/schedule/track/geospatial/">https://fosdem.org/2015/schedule/track/geospatial/ </a></b><br />
<b>to have a look.</b><br />
<br />
For those who don't know it, FOSDEM is one of Europe's largest open source developer gatherings. Access is free and no registration is required. It takes place on Saterday 31 january and Sunday 1 february (when we will have the geospatial devroom). <br />
<br />
<br />
If you can not come to Brussels (or if the room is <i>full</i>): we will stream/record everything, so you can still enjoy the great talks. <br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitOzr13KJxP5Z9L0wuWvTXYh3m3awTzH-AUPQW7anIO5eSKXT55kMJqjLlYOGIY3Y6ugQJ3VWuOq21pMzrWK6bj7x7ILC_GxBb7DvFS7tjkrrFz_d8nAysba-UAXuogkKG8hYxdp184_RB/s1600/full.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitOzr13KJxP5Z9L0wuWvTXYh3m3awTzH-AUPQW7anIO5eSKXT55kMJqjLlYOGIY3Y6ugQJ3VWuOq21pMzrWK6bj7x7ILC_GxBb7DvFS7tjkrrFz_d8nAysba-UAXuogkKG8hYxdp184_RB/s1600/full.jpg" height="254" width="320" /></a></div>
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Hope to see many of you in Brussels!<br />
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<a href="http://upload.wikimedia.org/wikipedia/commons/f/f5/Brussels_Great_Marked_Square.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://upload.wikimedia.org/wikipedia/commons/f/f5/Brussels_Great_Marked_Square.jpg" height="226" width="320" /></a></div>
<span style="font-size: x-small;">(image <a href="http://bg.wikipedia.org/wiki/%D0%91%D1%80%D1%8E%D0%BA%D1%81%D0%B5%D0%BB#mediaviewer/File:Brussels_Great_Marked_Square.jpg">source</a>)</span>Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-50435291243911047602014-11-15T13:58:00.000-08:002014-11-15T14:00:44.402-08:00Why you should present/be present at FOSDEM<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOVk46wXF2RhN_hVIjA3EWQrJ8xFJ3SpXfCAxbVzhmo9WSEUCztKDoFUkD8KEqqbQs53kGHcstpEPO58CtJQmfZefwwsbFe_2FaG-3FBnzk8kgnypmuUABKPX2p3T2pdXYE3GhiXhnrotG/s1600/fosdem-banner.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgOVk46wXF2RhN_hVIjA3EWQrJ8xFJ3SpXfCAxbVzhmo9WSEUCztKDoFUkD8KEqqbQs53kGHcstpEPO58CtJQmfZefwwsbFe_2FaG-3FBnzk8kgnypmuUABKPX2p3T2pdXYE3GhiXhnrotG/s1600/fosdem-banner.png" height="144" width="640" /></a></div>
Last month <a href="http://geofemengineering.blogspot.be/2014/10/call-for-papers-geospatial-devroom.html?spref=tw">we</a> <a href="http://blog.gisky.be/2014/10/call-for-papers-geospatial-devroom.html">published</a> a call for participation for the Geospatial devroom at <a href="http://www.fosdem.org/">FOSDEM</a> .<br />
<br />
But with many other conferences around one may wonder why they want to be present at geospatial@FOSDEM? Well, one of the main goals of the organisers is to bring geospatial and non-geo developers together. Are you interested in building your own GPS device or drone? Check out some of the talks in the embedded room. Are you using java, python, php, perl? All those languages have dedicated rooms where you can get an update. Interested in routing or using postgresql? Yep, there is a graph devroom and a postgresql room. Want to get your software in linux distributions? The distribution devroom. <i>The same is true the other way around, people from those communities can come to see your talk as well.</i><br />
<br />
Anyway, already a number of interesting talks has been submitted, and I just want to remind everyone of the deadline of <b>**1 december**</b>. So if you are interested in presenting something - go ahead and <a href="https://lists.fosdem.org/pipermail/fosdem/2014-October/002039.html">submit</a> your proposal! Don't postpone - if you have just a title - submit that already :-) <br />
<br />
<br />
Some practical announcements: if you are interested in the devroom, consider joining the <a href="https://lists.fosdem.org/listinfo/geospatial-devroom">devroom mailinglist</a>. We will be using that mailinglist to send updates on the devroom and a social event. FOSDEM itself is free of charge and requires no registration, so no obligations here: you can just show up as well.<br />
<br />
A last note: we want to stream the tracks and provide videos. If you intent to come and have experience with video (or would like to get some), please <a href="mailto:fosdem-geospatial@gisky.be">get in touch</a>, we could still use volunteers.<br />
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Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-76698214990558065512014-10-27T11:34:00.001-07:002014-10-27T11:34:54.239-07:00Please help test SAGA 2.1.3 RC1 SAGA GIS is planning to have another release this week (SAGA 2.1.3).<br />
<br />
Please help testing! Windows users may find a snapshot build <a href="http://sourceforge.net/projects/saga-gis/files/SAGA%20-%202.1/SAGA%202.1.3%20RC/">here</a> (attention, 64 bit only).<br />
<br />
Users on ubuntu can also test by using the builds provided on my launchpad ppa:<br />
<a href="https://launchpad.net/%7Ejohanvdw/+archive/ubuntu/sagacvs" target="_blank">https://launchpad.net/~<wbr></wbr>johanvdw/+archive/ubuntu/<wbr></wbr>sagacvs</a><br />
<br />
Those using debian can actually download the source packages from<br />
those daily builds as well (eg dget<br />
<a href="https://launchpad.net/%7Ejohanvdw/+archive/ubuntu/sagacvs/+files/saga_2.1.2%2Bdfsg%2Bsvn2248%2B21%7Eubuntu14.10.1.dsc" target="_blank">https://launchpad.net/~<wbr></wbr>johanvdw/+archive/ubuntu/<wbr></wbr>sagacvs/+files/saga_2.1.2%<wbr></wbr>2Bdfsg%2Bsvn2248%2B21~<wbr></wbr>ubuntu14.10.1.dsc</a><br />
) and build from source. All others can of course also build <a href="http://sourceforge.net/p/saga-gis/wiki/Compiling%20from%20Source/">from source</a> as well.Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-66250304586599914222014-10-17T00:34:00.000-07:002014-10-17T00:36:05.815-07:00Call For papers Geospatial devroom @FOSDEM<i>Please forward!</i><br />
<br />
<a href="http://www.fosdem.org/"><b>FOSDEM</b></a>
is a free open source event bringing together about 5000 developers in
Brussels, Belgium. The goal is to provide open source software
developers and communities a place to meet at. The next edition will
take place the weekend 31/1 -> 1/2/2015. This year for the first time
there will be a <b>geospatial devroom</b> on Sunday 1/2/2015!<br />
<br />
Geospatial
technology becomes more and more part of mainstream IT. The idea is to
bring together people with different backgrounds to better explain and
understand the opportunities Geospatial can offer. This devroom will
host topics explaining the state of the art of geospatial technology,
and how it can be used amongst other projects.<br />
<br />
The <b>geospatial devroom</b>
is the place to talk about open, geo-related data and software and
their ecosystem. This includes standards and tools, e.g. for spatial
databases, and online mapping, geospatial services, used for collecting,
storing, delivering, analysing, and visualizing puposes. Typical topics
that will be covered are:<br />
<br />
<ul>
<li>Web and desktop GIS applications</li>
<li>Interoperable geospatial web services and specifications</li>
<li>Collection of data using sensors/drones/satellites</li>
<li>Open hardware for geospatial applications</li>
<li>Geo-analytic algorithms/libraries</li>
<li>Geospatial extensions for classical databases (indexes, operations)</li>
<li>Dedicated databases</li>
</ul>
<b>HOW TO SUBMIT YOUR TALK PROPOSAL</b><br />
<br />
Are
you thrilled to present your work to other open source developers?
Would you like to run a discussion? Any other ideas? Please submit your
proposal at the Pentabarf event planning tool at:<br />
<br />
<a href="https://penta.fosdem.org/submission/FOSDEM15">https://penta.fosdem.org/submission/FOSDEM15</a><br />
<br />
When submitting your talk in Pentabarf, make sure to select the <b>'Geospatial devroom' </b>as 'Track'. Please <b><i><u>specify</u></i></b> in the notes if you prefer for your presentation a <b>short timeslot</b> (lightning talks ~10 minutes) or a <b>long timeslot</b> (20 minutes presentation + discussion).<br />
<br />
The <b>DEADLINE</b> for submissions is **<b>1st December 2014</b>**<br />
<br />
Should you have any questions, please do not hesitate to get in touch with the organisers of the devroom at <i>fosdem-geospatial@gisky.be</i>!<br />
<br />
<i>Johan Van de Wauw</i><br />
<i>Margherita Di Leo</i><br />
<i>Astrid Emde</i><br />
<i>Anne Ghisla</i><br />
<i>Julien Fastré</i><br />
<i>Martin Hammitzsch</i><br />
<i>Andy Petrella </i><br />
<i>Dirk Frigne</i><br />
<i>Gael Musquet</i><br />
<br />
<br />
A final note for everyone still hesitating to come: have a look at the accepted <a href="https://fosdem.org/2015/news/2014-09-30-accepted-devrooms/">devrooms</a> and other tracks for this year, I'm sure you will find other interesting topics that will make your trip to FOSDEM worthwile!<br />
<br />
<br />Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-77741988931466372832014-08-17T14:22:00.004-07:002014-08-17T14:22:50.031-07:00Turning an android device into a GIS workstation or server<div>
<i>Baseline: By installing Debian GIS on your phone/tablet/... next to Android, you can turn the device into a powerful GIS workstation or server without loosing any of the original functionality.</i></div>
<div>
<br /></div>
<div>
My experiments started earlier this week. I was informed of a bug in debian: saga gis <a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=755361">failed to build</a> on an arm processor (a type of low power chips often found in mobile devices). Rather than turning to some server provided by debian to fix the build I thought of doing something else: I knew my phone also has an arm processor. And since android is based on linux, I thought it should be possible to run debian on it in a seperate "chroot" environment.</div>
<div>
<br /></div>
<div>
After doing some research I found "debkit". This is actually an app you can install right through <a href="https://play.google.com/store/apps/details?id=com.mizusoft.debkit">google play</a>. This app will give some <a href="http://sven-ola.dyndns.org/repo/debian-kit-en.html">very simple instructions</a> on how to install debian on your device (the device needs to be rooted. Otherwise it will not work). The actual instructions were very straightforward and I had a running debian installation with desktop support installed in less than one hour.</div>
<div>
<br /></div>
<div>
What you get is actually a full debian distribution, and in fact that means that you can also install a lot of <a href="http://blends.debian.org/gis/tasks/">GIS related packages</a>.</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWJ3P1sCwyGtouCPsiy-UNLzAnZAwMda5KjyPjhH6toPi_fvMQyQeO6Q3XTkrodB_wOvTck8HQazN_A3ZCMeVzTQ20F9JWNIAu6_LLxF4zpJlxMTuUrqBx-3AFmC7xVl3-mhU3fmQq1H28/s1600/Screenshot_2014-08-15-23-35-01.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWJ3P1sCwyGtouCPsiy-UNLzAnZAwMda5KjyPjhH6toPi_fvMQyQeO6Q3XTkrodB_wOvTck8HQazN_A3ZCMeVzTQ20F9JWNIAu6_LLxF4zpJlxMTuUrqBx-3AFmC7xVl3-mhU3fmQq1H28/s1600/Screenshot_2014-08-15-23-35-01.png" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Installing gdal through the command line</td></tr>
</tbody></table>
<div>
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<div>
Since I was doing all of this on a smartphone, typing gets tedious very fast, so I used an external keyboard. And yes: that looks really silly (check picture below). Even better is installing ssh, then you can connect from a pc or laptop to continue the installation.</div>
<div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8ozHtOuenCGS0X5iPWh60DrkcL81qQ0pJacB0eTdantfzpmkC_a75fmtCIlhWWlSWaAd_TsvIraVXlhJ4r3r2ey0-cyVWzIQXsHD5lc0M2h1OVseTJhh5R9ACAe-v6D1tHaA1jK4WoBGU/s1600/IMG_2453.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8ozHtOuenCGS0X5iPWh60DrkcL81qQ0pJacB0eTdantfzpmkC_a75fmtCIlhWWlSWaAd_TsvIraVXlhJ4r3r2ey0-cyVWzIQXsHD5lc0M2h1OVseTJhh5R9ACAe-v6D1tHaA1jK4WoBGU/s1600/IMG_2453.jpg" height="213" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">attaching a keyboard makes typing easier :-)</td></tr>
</tbody></table>
<br /></div>
<div>
You can even go one step further and install a graphical desktop environment, this means you can in fact run packages like qgis and saga on your phone. Though I agree that this is not very useful using a phone as a desktop replacement, it may be a powerful way to check some data or perhaps run a simple analysis in the field. Apart from that, plenty of tablets, cheap laptops and TV sets based on android or chrome os exist. Ones that you may prefer taking to the field rather than your real workstation. The screenshot below was taken from a desktop environment running on my phone. I should add that this works relatively smooth and was not stressing the device.</div>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdi2PG_ODobVlsozE8JEM9isDnkvIzOHZ2JY2ceI73YxPVSzddCMISeAoA6QTnChwVrGF5TG0nnElNSi3L-mJkgP3-bZtm5Yn7YGc6rX7ZcVJab_ObeaMERe5ZPldnyI117wFTbw7jTsTP/s1600/remote4.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdi2PG_ODobVlsozE8JEM9isDnkvIzOHZ2JY2ceI73YxPVSzddCMISeAoA6QTnChwVrGF5TG0nnElNSi3L-mJkgP3-bZtm5Yn7YGc6rX7ZcVJab_ObeaMERe5ZPldnyI117wFTbw7jTsTP/s1600/remote4.jpg" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Hard to distinguish from a real desktop, but this is an actual screenshot taken on my smartphone (lenovo p780)</td></tr>
</tbody></table>
<div>
<br /></div>
<div>
<br /></div>
<div>
But perhaps even more useful is that you can actually run servers on the device as well. If you have a webapplication that usually runs on a debian server you may actually be able to take it with you on the device, and use the standard android browser to use it. Not something you would like as a proper solution, but could be worth it for proof or concepts, ...</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3QvPKvLC29jSj03mgnvutYBwnX1UEc8Qo1LjIQpCYXFu0KfbwGnkzKudvEB8AoAVErPKanLTuUZwsfFFTBiBOPM4LJV1jXqAx6x061HJnoz8iRTN1YgIlVWH0-EqLrx-vOlhi-oI05HBS/s1600/Screenshot_2014-08-17-22-30-39.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3QvPKvLC29jSj03mgnvutYBwnX1UEc8Qo1LjIQpCYXFu0KfbwGnkzKudvEB8AoAVErPKanLTuUZwsfFFTBiBOPM4LJV1jXqAx6x061HJnoz8iRTN1YgIlVWH0-EqLrx-vOlhi-oI05HBS/s1600/Screenshot_2014-08-17-22-30-39.png" height="180" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Mapserver running locally and serving as a wms</td></tr>
</tbody></table>
<br />
<br /></div>
<div>
It also shows nicely how you actually use debian next to android: you don't replace any existing things. It can lead to special situations as well. While I had just started compiling some software, I got a phonecall and just picked up the phone ...</div>
<div>
<br /></div>
<div>
All of this would not have been possible if all debian contributors would not have been so eager in supporting so <a href="https://www.debian.org/ports/">many ports</a>, and the <a href="https://wiki.debian.org/DebianGis">debian gis</a> team in bringing a lot of GIS software to the distribution! </div>
<div>
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<div>
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Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com2tag:blogger.com,1999:blog-1139831347829888451.post-28458853923478603692014-03-13T01:28:00.001-07:002014-03-13T01:28:55.906-07:00Book Review: OpenLayers CookbookI recently got my hands on a copy of the <a href="http://www.packtpub.com/openlayers-create-gis-web-applications-cookbook/book">OpenLayers Cookbook</a> by Antonio Santiago Perez published by Packt Publishing.<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://dgdsbygo8mp3h.cloudfront.net/sites/default/files/imagecache/productview_larger/7843OS_OpenLayer%20Cookbook_cov_0.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://dgdsbygo8mp3h.cloudfront.net/sites/default/files/imagecache/productview_larger/7843OS_OpenLayer%20Cookbook_cov_0.jpg" /></a></div>
<br />
<br />
The baseline of the book is "60 recipes to create GIS web applications with the open source JavaScript library". This means that the book is based on 60 examples which can be viewed <a href="http://acanimal.github.io/Openlayers-Cookbook/">online</a> . The code is also available on <a href="https://github.com/acanimal/Openlayers-Cookbook">github</a>.<br />
I like this style: the way I search for specific OpenLayers features is usually by studying example programs such as the ones on the <a href="http://openlayers.org/dev/examples/">OpenLayers website</a>. It gives a quick feel of whether a certain feature is feasible or not and how much work it would take to implement.<br />
There is always a danger with this type of approach and that is that you start copy/pasting code which you don't understand. This is where this book shows it's advantage over the examples on the OpenLayers website: apart from the code, which is well readable and formatted, every example is accompanied by a section "how it works" and usually also links to related examples. Every chapter also starts with an introduction which covers the basic classes and concepts used.<br />
<br />
The book contains content for both beginners and advanced users. I skipped quickly through the first three chapters: Web mapping basics, adding raster layers and working with vector layers. I should add that topics are discussed in detail: clustering of vector features, filtering of WFS requests.<br />
<br />
A GIS application often is only as good as it looks, and two chapters discuss the theming of the openlayers interface and the styling of map features. The examples go all the way down to creating a new custom theme.<br />
<br />
As a more advanced OpenLayers users I liked these chapters and the three remaining ( working with events, adding controls, beyond the basics) the most. Some non-obvious extensions to openlayers are discussed: interacting with services, creating custom controls and renderers, ...<br />
Almost evrery application of OpenLayers can benefit from some of the recipes in these chapters.<br />
<br />
<h3>
Conclusion</h3>
I can recommend this book to anyone who wants to build applications with OpenLayers. The structure with recipes allows one to quickly find out how a feature can be implemented, moreover there is always a complete explanation of of how things work in the book (and where things can go wrong, such as cross domain requests).<br />
<br />
If I have to talk about one disadvantage of the book? Development of <a href="http://ol3js.org/">OpenLayers 3</a> (which is incompatible with OpenLayers 2) is ongoing and beta 2 has been released recently. Since this book is from 2012 it predates most of these recent developments. I would have loved a chapter highlighting what best-practices one should follow to make a switch to a future version of OpenLayers as easy as possible.Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com1tag:blogger.com,1999:blog-1139831347829888451.post-28964407856977721412014-02-10T11:39:00.004-08:002014-02-10T11:39:51.462-08:00Put your data on a map!This blogpost is a transcript of <a href="http://www.t-dose.org/2013/talks/put-your-data-map">presentation </a>I gave in 26 october during the T-dose conference in Eindhoven, The Netherlands. I wanted to give a talk about how open source software, open data and open standards enable almost everyone to easily create maps and add a geocomponent to other application.<br>
One of the things that struck me was how by just showing where one can find data about Belgium and the Netherlands I could give demonstrations of almost all important web-based GIS applications. Since all these applications are freely available and often beautiful examples of what can be done with FOSS GIS software I think they are also useful for a broader audience than just Belgium/The Netherlands.<br>
<br>
<a href="http://blog.gisky.be/2014/02/put-your-data-on-map.html#more">Read more »</a>Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com3tag:blogger.com,1999:blog-1139831347829888451.post-61766911518623625272014-01-11T11:00:00.000-08:002014-01-11T11:01:11.209-08:00SAGA 2.1.1 releasedOlaf posted <a href="http://sourceforge.net/p/saga-gis/news/2014/01/saga-211-is-released/">this message</a> two days ago on the SAGA web
<blockquote>Dear SAGA friends, users, and all others interested in SAGA,
we like to announce the release of SAGA version 2.1.1. In this version you will find a number of minor enhancements and additions, which in their sum make it the best SAGA ever. So, don't hesitate to download it right now! This version depends now on the lately released wxWidgets v3.0. Have a look at the <a href="http://sourceforge.net/apps/trac/saga-gis/attachment/wiki/Changelog%202.1.1/changelog_saga_2.1.1.txt ">change log </a> for more details.
And now enjoy the world of SAGA,
your SAGA Development Team
Download SAGA 2.1.1 from <a href="http://sourceforge.net/projects/saga-gis/files/SAGA%20-%202.1/SAGA%202.1.1">http://sourceforge.net/projects/saga-gis/files/SAGA%20-%202.1/SAGA%202.1.1</a>/</blockquote>
As you can read from the changelog: mostly bug fixes so definitely worth an update!
I just want to add that I finished packaging for <a href="http://anonscm.debian.org/gitweb/?p=pkg-grass/saga.git">debian</a> and ubuntu and the new release is now also available on <a href="https://launchpad.net/~johanvdw/+archive/saga-gis">my ppa</a> and on <a href="https://launchpad.net/~ubuntugis/+archive/ubuntugis-unstable">ubuntugis unstable</a>, and will be on the next osgeo live dvd.Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-31635379210867351072013-09-06T13:56:00.001-07:002013-09-06T14:08:15.132-07:00On bicycle accidents and furry pornographyA few days ago, the Belgian newspaper <a href="http://www.standaard.be/">de standaard</a> published <a href="http://www.standaard.be/fietsongelukken-vlaanderen">this map</a> depicting the number of bicyle accidents per community in Flanders.<br>
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<iframe width="500" height="350" scrolling="no" frameborder="no" src="https://www.google.com/fusiontables/embedviz?q=select+col13%3E%3E1+from+1n99j0pZYCcy2YSHoX0u4xLQquBABCvUCrrPQ4jQ&viz=MAP&h=false&lat=51.08923620614504&lng=4.164940695312467&t=1&z=8&l=col13%3E%3E1&y=2&tmplt=2&hml=KML"></iframe>
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When I saw the map I quickly had to think of this XKCD comic:<br>
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<a href="http://xkcd.com/1138/"><img border="0" height="320" src="http://imgs.xkcd.com/comics/heatmap.png" width="295"></a></div>
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Yes, logically most accidents happen in communes with a large population. Normalizing by population seems a sensible thing to do.<br>
<a href="http://blog.gisky.be/2013/09/on-bicycle-accidents-and-furry.html#more">Read more »</a>Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-14393598925665377912013-06-13T12:13:00.001-07:002013-06-14T00:07:30.249-07:00Saga GIS 2.1.0 rc2 - What's new?Last week Olaf <a href="http://sourceforge.net/p/saga-gis/news/2013/06/saga-21-release-candidate-2/">released</a> the second release candidate for SAGA GIS 2.1.0. I thought this was a good opportunity to take some time to document what's new.<br>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnb7wJjpU0lhksoZdIvfQ-Z2y2KgMCQiVXeD3d6On8OsU0N5U-ek8lvLjBrCC_2vRVbXEqkeCF1U9gRVUF39AIGhjK-dmalG5Y-Xc1gRQXpr3SH4XLoPGnyP-G9Ngd7WHLd5a77T1be3Ve/s1600/saga-logo.png"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnb7wJjpU0lhksoZdIvfQ-Z2y2KgMCQiVXeD3d6On8OsU0N5U-ek8lvLjBrCC_2vRVbXEqkeCF1U9gRVUF39AIGhjK-dmalG5Y-Xc1gRQXpr3SH4XLoPGnyP-G9Ngd7WHLd5a77T1be3Ve/s320/saga-logo.png"></a><br>
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The major (from a technical point of view) change was the switch of wxwidgets 2.8 to wxwidgets 2.9. One of the major reasons that switch was made was to have better support for <b>MacOSX</b>, and it was also an opportunity to solve some unicode issues.<br>
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But unless you are using MacOSX this will not really help you. So you may be more interested in some other new features. One of the most relevant is support for <b>parallel processing</b> and some other performance enhancements. If you have a multicore processor you may find out that performance in some grid procedures like reclassification, resampling and calculation of convergence and wetness index is much better in this new build.<br>
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<a href="http://blog.gisky.be/2013/06/saga-gis-210-rc2-whats-new.html#more">Read more »</a>Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com0tag:blogger.com,1999:blog-1139831347829888451.post-12092199945898301182013-05-07T13:21:00.000-07:002013-05-07T23:05:06.414-07:00Should the "Geoservices REST API" become an OGC standard?ESRI recently submitted their ESRI server REST standards to the <a href="http://www.opengeospatial.org/standards/requests/89">OGC</a>. Currently, the voting members have to decide whether they accept the proposal or not. As one of the contributors to the OSGEO-Live dvd, <a href="http://cameronshorter.blogspot.be/">Cameron Shorter</a> invited me to the discussion at <a href="http://lists.osgeo.org/pipermail/discuss/2013-May/thread.html">Osgeo discuss list</a>.<br />
This discussion comes at an interesting time. Just a few weeks ago I did a session on geospatial web services in <a href="http://www.realdolmen.com/">my company</a>. The actual reason that we covered this topic is that there are two interesting (and diverting) trends happening at the same time:<br />
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<li><item>The current OGC standards are finally taking off. Ever since our governement started serving their large-scale reference maps as publicly available WMS services, I see them being used by many of our customers</item><br /><item>At the same time, I managed finding interesting data sets using CSW services for the first time, and the fact that view and metaservices have to be provided for INSPIRE III themes by the end of the year will probably mean that the shift to using services is finally taking off. </item></li>
<li><item>On the other hand RESTful GIS services have started popping up everywhere. ESRI's proposed <a href="http://www.opengeospatial.org/standards/requests/89">Geoservices REST API</a> is one, <a href="https://code.google.com/p/georest/">GeoREST </a>is another one which I've enjoyed using. </item></li>
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Actually my first thoughts when using ESRI's api was a sense of relief: I really enjoyed using these services. The fact that I can just tinker using an URL rather than having to use a special SOAP client was nice. My productivity as a programmer increased enormously. I couldn't figure out why anybody would want to use SOAP-like services (without going in a semantic discussion).<br />
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<item>So you would expect that I'd support the Geoservices REST API as an OGC standard? Well, <b>no</b>. Quite a large number of valid points have been <a href="http://lists.osgeo.org/pipermail/discuss/2013-May/011602.html">raised</a>: the name is bad, the existing reference implementation is commercial without available sources, ...</item></div>
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<item>But I'd like to raise a <b>different point</b>: there are too many different services involved: the proposed standard comes in 8 different parts, all covering services which in my opinion unrelated. </item></div>
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<pre style="white-space: pre-wrap;"> 12-054r2 GeoServices REST API - Part 1: Core
12-055r2 GeoServices REST API - Part 2: Catalog
12-056r2 GeoServices REST API - Part 3: Map Service
12-057r2 GeoServices REST API - Part 4: Feature Service
12-058r2 GeoServices REST API - Part 5: Geometry Service
12-059r2 GeoServices REST API - Part 6: Image Service
12-060r2 GeoServices REST API - Part 7: Geoprocessing Service
12-061r2 GeoServices REST API - Part 8: Geocoding Service
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<item>This is the opposite of the<a href="http://en.wikipedia.org/wiki/Unix_philosophy"> unix philosophy</a>: have one tool for the job. This is what in my opinion services should be about: have one service for every job, so one standard for every service. </item></div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://bestpocketknifetoday.com/wp-content/uploads/2013/04/Wenger-Giant.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="229" src="http://bestpocketknifetoday.com/wp-content/uploads/2013/04/Wenger-Giant.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">One tool for every job? <a href="http://bestpocketknifetoday.com/cool-pocket-knives/">Image source</a></td></tr>
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<item>I don't understand why a good feature service should also provide geocoding, maps or any other service. Yet these small tools will not be able to comply to the standard because they can provide only one service. </item></div>
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So my proposal would be: <b>break up the proposal</b>. Check where new standards may be useful or where RESTFul implementations of existing services (and we already have a long list) are more appropriate. The services provided by ESRI prove that such an implementation really boosts productivity.</div>
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And actually while doing this, perhaps we should immediately consider using binary data where appropriate. I started off by saying that web services are finally being used. I did not mention WFS. This is logical. Nobody likes WFS. It is too slow. If WMS would contain an xml record for every pixels with an attribute for every color nobody would use it either. No, WMS sends a binary image. Why isn't WFS doing the same and sending vector data in a binary form? </div>
Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com4tag:blogger.com,1999:blog-1139831347829888451.post-44829135982435070762013-03-12T07:17:00.000-07:002013-03-14T14:59:01.390-07:00Using Mapguide selection with OpenLayers<span style="font-family: inherit;"><br></span>
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Using Mapguide
selection with OpenLayers</span></h2>
<div style="font-size: 11pt; margin: 0in;">
<span style="font-family: inherit;">Mapguide is a great solution for building web applications: i<span style="font-size: 11pt;">t has the best administrative interface of all open-</span><span style="font-size: 11pt;">source (and some commercial) web servers, it is
very fast with vector data, it integrates nicely with AutoCAD Map 3D, ...</span></span></div>
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<span style="font-family: inherit;">Even though I am
very satisfied with the basic viewer, it does not play well on mobile devices. Creating a viewer using <a href="http://www.openlayers.org/">OpenLayers </a>seems the way to go, and it is in fact the library used by
the fusion viewer and AutoDesk's own mobile viewer. </span></div>
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<span style="font-family: inherit;">Since I wanted my
mobile viewer integrated with an existing application, I prefered rolling my
own viewer based on OpenLayers: for integration with the rest of an existing
webapplication I prefer a simple viewer rather than having all the bells and whistles of the fusion viewer.</span><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkWTiH1u3XiuCVv7QG6a0VMCGqvNmCeSerYbx74BYfWx8qdnD0Srle6GJBQ-ayCYa28BylA-dTKJhsD-AMor5zjCXmAAZvwlJRY0GevG0pjlENILTUnhJdPsd557yM4GCvg191NSKrWjh8/s1600/screenshot-mapguideselection.png" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkWTiH1u3XiuCVv7QG6a0VMCGqvNmCeSerYbx74BYfWx8qdnD0Srle6GJBQ-ayCYa28BylA-dTKJhsD-AMor5zjCXmAAZvwlJRY0GevG0pjlENILTUnhJdPsd557yM4GCvg191NSKrWjh8/s320/screenshot-mapguideselection.png"></a>
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</div><a href="http://blog.gisky.be/2013/02/using-mapguideselection-with-openlayers.html#more">Read more »</a>Johan Van de Wauwhttp://www.blogger.com/profile/13616087982625901596noreply@blogger.com3