686 reputation
412
bio website libregis.org
location Spain
age 33
visits member for 3 years, 1 month
seen Apr 6 at 18:34

I'm a software developer, focused on GIS. PostGIS and GDAL committer. I'd love to add 'where' to people's lives.


Jan
15
revised How to add color interpretation for raster bands using GDAL?
added 39 characters in body
Jan
15
comment How to add color interpretation for raster bands using GDAL?
Ok,updated question. I need a color table for first band.
Jan
15
revised How to add color interpretation for raster bands using GDAL?
added 577 characters in body
Jan
15
comment How to add color interpretation for raster bands using GDAL?
Mmmm, ok. If I warp them to create north up rasters, I can build the VRT, and add ColorInterp where needed, buy I still get gray, undefined, undefined. I need to create a color table for first band, but I don't know how. I'll update the question.
Jan
15
awarded  Editor
Jan
15
revised How to add color interpretation for raster bands using GDAL?
added 258 characters in body
Jan
15
comment How to add color interpretation for raster bands using GDAL?
I actually did that, but I get "ERROR 6: SetColorTable() not supported for multi-sample TIFF files.". And I get 0 for all pixels. I'm not sure about the meaning of this error.
Jan
15
comment How to add color interpretation for raster bands using GDAL?
No,they all have the same geotransforms,but they're no north-up rasters (rotation parameters are not 0). And gdalbuildvrt does not support rotated geo transforms. I don't want to warp them.
Jan
14
comment How to add color interpretation for raster bands using GDAL?
I tried, but my raster files are rotated...
Jan
14
asked How to add color interpretation for raster bands using GDAL?
Dec
7
comment GDAL: C++ API to Convert Text file of Coordinate points to Raster Pixel line?
You're welcome :-)
Nov
23
answered How to install PostGIS on Windows?
Sep
12
awarded  Nice Question
Sep
11
comment What is the fastest (performance-wise) way to serve PostGIS features?
Thanks! The project was finally cancelled, but I think your solution is a good one.
Aug
29
comment How could I make this PostGIS query run faster?
Not exactly. I wrote the GDAL PostGIS Raster driver, and helped with PostGIS Raster extension (did some functions, mostly related with GDAL). I know the raster-polygon intersection implies the polygonization of the raster previous to intersection. That could be a heavy process. I don't know if there's some PostgreSQL specific thing I can do to make it faster without changing PostGIS Raster internals.
Aug
28
asked How could I make this PostGIS query run faster?
Aug
15
comment How to put zipcodes data onto a web map?
Too long to generate the tile cache.
Aug
15
comment Why does gdalbuildvrt not allow these things?
Thanks for the suggestion!
Aug
15
awarded  Yearling
Aug
14
comment Why does gdalbuildvrt not allow these things?
Yes, I'm actually using VRT driver to develop my own one. I've read, in several places, that is hard to work with rotated rasters. Tools like gdal_translate or gdalbuildvrt doesn't work in the input raster(s) is (are) rotated. So, why is so difficult? Isn't enough with the GeoTransform array?