erouault.blogspot.com
Geo tips & tricks: octobre 2014
http://erouault.blogspot.com/2014_10_01_archive.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Mercredi 22 octobre 2014. Blending metadata into vector formats. This post explores a few ideas, and the resulting experiments, I've had recently to put metadata (or arbitrary information) into vector GIS formats that have no provision for them. One typical such format is the good-old Shapefile format. Some allow .shx to be missing, like OpenJUMP. In the .shp due to editing. 120, OpenJUMP 1.7.1 (wh...Shp :...
erouault.blogspot.com
Geo tips & tricks: JPEG-in-TIFF with mixed qualities
http://erouault.blogspot.com/2014/12/jpeg-in-tiff-with-mixed-qualities.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Jeudi 18 décembre 2014. JPEG-in-TIFF with mixed qualities. Some time ago, I wrote about advanced JPEG-in-TIFF uses in GDAL. Shared by all tiles or strips. This issue is now solved. Allows the quantization table to be stored in the JpegTables TIFF tag for all tiles or strips. Up to now, I thought this was a requirement, but indeed, reading more closely the specification, I found this was only an option&...
erouault.blogspot.com
Geo tips & tricks: février 2015
http://erouault.blogspot.com/2015_02_01_archive.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Mardi 17 février 2015. GDAL 1.11.2 released. On behalf of the GDAL/OGR. Development team, I am pleased to. Announce the release of the GDAL/OGR 1.11.2 bug fix release. This. Release contains more than 60 bug fixes since the October 2014 1.11.1 release. The source is available at:. Http:/ download.osgeo.org/gdal/1.11.2/gdal-1.11.2.tar.xz. Http:/ download.osgeo.org/gdal/1.11.2/gdal1112.zip.
erouault.blogspot.com
Geo tips & tricks: janvier 2014
http://erouault.blogspot.com/2014_01_01_archive.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Jeudi 16 janvier 2014. Last year, I blogged about the reverse-engineering of the ESRI file geodatabase format. That work, thanks to funding, has lead to the writing of a OGR OpenFileGDB driver. Now available in GDAL/OGR trunk repository. Since the initial phase of the reverse-engineering, significant advances have been made and documented. SDK v1.3, we find :. On the plus side :. Faster on databases with a...
erouault.blogspot.com
Geo tips & tricks: GDAL 1.11.2 released
http://erouault.blogspot.com/2015/02/gdal-1112-released.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Mardi 17 février 2015. GDAL 1.11.2 released. On behalf of the GDAL/OGR. Development team, I am pleased to. Announce the release of the GDAL/OGR 1.11.2 bug fix release. This. Release contains more than 60 bug fixes since the October 2014 1.11.1 release. The source is available at:. Http:/ download.osgeo.org/gdal/1.11.2/gdal-1.11.2.tar.xz. Http:/ download.osgeo.org/gdal/1.11.2/gdal1112.zip.
erouault.blogspot.com
Geo tips & tricks: Multi-threaded GeoTIFF compression
http://erouault.blogspot.com/2015/06/multi-threaded-geotiff-compression.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Dimanche 14 juin 2015. GDAL 2.0.0 should be released soon ( RC2 available. But the development version (2.1.0dev) has already received interesting improvements, especially for massive pixel crunchers. ZLEVEL=1, 1 thread: 26s, 486 MB. ZLEVEL=6(default), 1 thread: 44s, 440 MB. ZLEVEL=1, 4 threads: 12s, 486 MB. ZLEVEL=6, 4 threads: 16s, 440 MB. ZLEVEL=1, PREDICTOR=2, 1 thread : 25 s, 354 MB. Multi-threaded co...
mapserver.gis.umn.edu
MapServer Service Providers — MapServer 7.0.4 documentation
http://mapserver.gis.umn.edu/community/service_providers.html
How to Add a Company. MapServer is developed and supported by a rich ecosystem of businesses and individuals around the world. In this page we provide a list of service providers who can assist you in getting the best out of your MapServer investment. Their services can range from training and technical support to help you get started, all the way to specialized development and support services to advance the software and support your organization’s mission-critical applications. They wrote the software ...
erouault.blogspot.com
Geo tips & tricks: mai 2015
http://erouault.blogspot.com/2015_05_01_archive.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Lundi 25 mai 2015. GDAL 2.0 driver metadata. Among the many improvements that GDAL 2.0. Will bring (hint: its beta2 is now available. Is the fact that vector drivers (OGR drivers) can now expose metadata about their capabilities, as a side effect of the GDAL/OGR unification. Let's look at the output of driver metadata for the PostgreSQL driver :. Ogrinfo - format postgresql. Help Topic: drv pg.html. Option...
erouault.blogspot.com
Geo tips & tricks: Reliable multithreading is hard
http://erouault.blogspot.com/2015/07/reliable-multithreading-is-hard.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Jeudi 2 juillet 2015. Reliable multithreading is hard. In the development version (future 2.1.0). My first reaction when seeing the new failures was to try reproducing them locally on my machine, but that didn't work. I also tried on another machine: no better. Then I ran the tests under the Valgrind memory debugger, since random failures tend to be often associated with misuse of dynamic memory, a...When ...
erouault.blogspot.com
Geo tips & tricks: GDAL 2.0 driver metadata
http://erouault.blogspot.com/2015/05/gdal-20-driver-metadata.html
Geo tips and tricks. OSGeo, GDAL and other GIS fun. Find me on Twitter. Or on my company Spatialys. Lundi 25 mai 2015. GDAL 2.0 driver metadata. Among the many improvements that GDAL 2.0. Will bring (hint: its beta2 is now available. Is the fact that vector drivers (OGR drivers) can now expose metadata about their capabilities, as a side effect of the GDAL/OGR unification. Let's look at the output of driver metadata for the PostgreSQL driver :. Ogrinfo - format postgresql. Help Topic: drv pg.html. Option...
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