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What's new about PostGIS Raster?

March 24, 2011
A great Code Sprint and... ...a new contributor!
David Zwarg from Avencia and Pierre Racine from the CFR met for the first time at the Montréal Code Sprint last week. They came out with a very innovative MapAlgebra function based on a user defined PL/pgSQL function. This code should be committed soon with another version involving neighbour pixels. On another side, students are already showing interest for our Google Summer of Code Ideas and Bborie Park, an experienced programmer from the Center for Vectorborne Diseases at the University of California will join the team. He will work on a series of SQL function converting PostGIS rasters to the different formats supported by GDAL and on resampling. Welcome Bborie!

February 14, 2011
Two plugins to display PostGIS rasters!
Thanks to Maurício de Paulo, there is now a plugin to display PostGIS rasters in QGIS. Look for "wktraster" in the QGIS plugin page and Mauricio's article (if you can decrypt portuguese!). Samething on the side of gvSIG, the popular spanish open source GIS! Nacho Brodin has developed a plugin to display raster stored in PostGIS. See the page of the project. On our side, we are working fixing bugs and implementing ST_MapAlgebra. See you at the Code Sprint 2011 in Montréal (march 15-18)!

September 15, 2010
WKT Raster becomes THE new PostGIS raster type!
It's official! The WKT Raster extension will become the new PostGIS RASTER type in PostGIS 2.0 planned for next april. The PostGIS and the WKT Raster team met at the FOSS4G friday's code sprint and decided that WKT Raster was mature enough to bring interesting new functionalities to PostGIS. A new MapAlgebra function should be added for this release. Congratulation to the whole team for all the work accomplished!

August 11, 2010
PostGIS WKT Raster at FOSS4G
There should be a lot of discussion about PostGIS WKT Raster at FOSS4G, the most important conference for free and open source software for geomatics, as both Pierre Racine and Jorge Arévalo presentations have been selected by the attendees. Pierre will first introduce the project in a presentation entitled “Introducing PostGIS WKT Raster: Seamless raster/vector operations in a spatial database” and Jorge will present the result of its meticulous study of the difference between PostGIS WKT Raster and Oracle GeoRaster in a presention entitled “PostGIS WKT Raster. An Open Source alternative to Oracle GeoRaster”. You can already read Jorge’s first impression in his first article in a series. CU September 6th 2010 in Barcelona!

June 11, 2010
A tutorial and a book!
The PostGIS in Action chapter on PostGIS WKT Raster is out! Thanks to Regina Obe and Leo Hsu, there is already a good amount of literature on WKT Raster and this makes WKT Raster to be a little bit more in the PostGIS family. Pierre Racine has also written a tutorial on how to import and intersect a huge raster coverage with a vector coverage. Your raster coverage is huge and you can't work with it in your favorite GIS platform? Read the tutorial! You will be amazed by the simplicity and the speed of the intersection functions. Good reading!

February 22, 2010
A third company join the WKT Raster team!
The award-winning GIS software development firm, Avencia, specializing in web-based geographic analysis, visualization and modeling applications, decided to invest in WKT Raster development. The company sent David Zwarg and Jeff Adams to the Code Sprint 2010 in NY. Jeff worked on PostGIS and David helped with many WKT Raster base functions. David committed himself to work on many other WKT Raster functions in the near future. His main task will be to design and implement the ST_MapAlgebra() and the ST_Resample() functions. Welcome David!

December 10, 2009
Tyler Erickson speaks about his need for PostGIS WKT Raster at FOSS4G 2009
Tyler Erickson, Research Scientist at the Michigan Tech Research Institute presented his research project at FOSS4G 2009 in Sydney, Australia. Tyler uses GeoDjango and PostGIS to visualise the results of CO2 simulation models directly in Google Earth. WKT Raster would enable him to easily do raster/vecter spatial analysis from his web application. Tyler's project was selected as one of the professional winners in Google’s 2009 KML in Research Competition.

December 4, 2009
Jorge Arevalo full time on WKT Raster!
Jorge Arevalo who developped the first version of the GDAL WKT Raster driver during the summer of 2009 will be working for at least one year on WKT Raster. Jorge is working for DEIMOS Space, a Spanish aerospace company leading the Espana virtual project. Jorge's superior, Miguel Lizondo, confirmed that Jorge would be devoting most of his time to WKT Raster in the coming year. This commitment should normally be extended for a second year afterward.

Jorge will follow the planned roadmap and will be the main developper for the coming year. Mateuzs Loskot will continue contribute his spare time to the project and Pierre Racine will help Jorge with the specifications and the general management of the project.

Welcome (back) Jorge!

October 16, 2009
PostGIS WKT Raster at Geomatique 2009 in Montréal!
Pierre Racine will present WKT Raster at Geomatique 2009 in Montréal on October 20. We hope we can get more people interested by the project! See the presentation (PDF)!

June 04, 2009
A prototype GDAL driver to WKT Raster implemented this summer!
Thanks to Mateusz Loskot, who proposed the Google Summer of Code project and Jorge Arevalo the student who was selected to implement it.