724 reputation
515
bio website libregis.org
location Spain
age 34
visits member for 3 years, 9 months
seen 7 mins ago

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


Nov
22
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
'gdal-config --prefix' tells you the PATH where default GDAL library (1.6 in your case) is installed. Probably, $HOME/FWTools. You can get rid of that folder. Once done, the default GDAL should be 1.9. You may need to update your PATH variable, to ensure it doesn't contain references to the deleted FWTools folder.
Nov
21
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
OMG, absolutely. I've just fixed it. That was a silly and annoying mistake. Sorry for that.
Nov
21
comment How to export raster from PostGIS enabled DB as GTiff with gdal_translate
As afalciano said, you can't use QGIS 2.0 yet. I didn't port the plugin to QGIS 2.0. I want to do it before the end of this year. And yes, you should use the last version of GDAL from trunk. It contains some improvements to PostGIS Raster driver.
Nov
20
comment PostGIS: Calculate the length of just the portion of linestring that intersect with a polygon
Mmm... same problems. I've added my real data and the queries I've executed. So, if you want to try...
Nov
19
comment PostGIS: Calculate the length of just the portion of linestring that intersect with a polygon
Thanks! I've updated the question. I'm closer now.
Nov
1
comment Create a band mask based on pixel locations, not in pixel values
Well, I guess it's time to learn how to use GRASS. BTW, many thanks!
Nov
1
comment Create a band mask based on pixel locations, not in pixel values
I'm a novice in GRASS, but this looks like similar: grass.osgeo.org/grass64/manuals/r.clump.html
Nov
1
comment Create a band mask based on pixel locations, not in pixel values
Wow! That looks exactly what I'm looking for. With which tool are you able to do it? QGIS? I assume that, but I can't see the option in QGIS 2.0.
Oct
31
comment What is a good way to retrieve geographic data along with imgs and mp3 files?
Ok, probably the mobile devices can handle a 100MB file as SQLite blob. My problem, as the backend guy, is that I don't want a 'dirty' solution. Currently, I create a json with relative links to mp3 and imgs, and this json, along with them, is zipped and sent to the user. It works, but I don't like it. I was thinking about an elegant format to store and retrieve img/audio/video files to a mobile client (MBTiles sounds elegant, for example)
Oct
14
comment Good algorithm to detect “wrong” features in a vectorial coverage
Sounds promising. Actually, next step of my work was to rasterize the vector data. I thought it would be easier to face this problem using the vector data, but I understand the logic of this solution. I just need to wait the funding to continue with this. Many thanks!
Oct
14
comment Good algorithm to detect “wrong” features in a vectorial coverage
I was not familiar with it, but I'll check the link. Many thanks!
Jun
1
comment What's regular blocking arrangement ? (GDAL)
Yes. I check it every day. I'll answer you before Monday.
May
29
comment What's regular blocking arrangement ? (GDAL)
Your welcome. Just drop me an email: jorgearevalo at libregis.org
May
19
comment GDAL: What is the best way to test if a CPLString is not empty?
absolutely right. Thanks!
May
12
comment qspatialite error compiling Qgis 1.8 (linux debian squeeze)
Hello, did you solve this? I have exactly the same problem...
Jan
18
comment How to add color interpretation for raster bands using GDAL?
I've asked my boss, and I can't publish data :-(. I actually could mix the files with a standalone code, that copies band by band the input files in the output. I'd like to do it with gdal_merge. My poblem is I can't set RGB color interpretation for the output file with gdal_merge.
Jan
16
comment How to add color interpretation for raster bands using GDAL?
Thanks for your tip! I want to merge 3 single band geotiffs in one 3-band geotiff. My problem is the output of gdal_merge is actually empty (pixels = 0). I can't use that output for anything.
Jan
15
comment How to add color interpretation for raster bands using GDAL?
Mmm... thanks for the response. I'm trying those options. Seems than I can't use PHOTOMETRIC=rgb because my datatype is not int. But I'm on it...
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
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.