Re: [gdal-dev] Extracting (arbitrary?) overviews from ECW file

2013-09-04 Thread Frank Warmerdam
Markus, I believe the GDAL ECW driver will pass RasterIO() requests through to the ECW SDK to evaluate meaning that there is no constraint based on the advertized power-of-two overviews exposed from GDAL and no loss of quality. Best regards, Frank On Wed, Sep 4, 2013 at 6:52 AM, Markus Schneide

Re: [gdal-dev] A strange thing with a png geospatial file and gdalwarp. Is it a bug?

2013-09-04 Thread peifer
aborruso wrote > I have changed only the file format, and I obtain different results. > > Is this normal? It is "normal", because more than the format has been changed. Compare the CRS definitions in png vs. tif and you'll find and additional extension definition in the tif: EXTENSION["PROJ4","+

[gdal-dev] Extracting (arbitrary?) overviews from ECW file

2013-09-04 Thread Markus Schneider
Dear list, I am new to programming with GDAL (and to the ECW format). Let me say thank you first, because my first experiences have been rather pleasant, even if my setup is relatively involved (thanks everybody for providing good documentation): - Ubuntu 12.04 (AMD64) - GDAL 1.10.1 (build from s

[gdal-dev] OGR with SDE support

2013-09-04 Thread Hallgren Johan
Hello, Is there a prebuilt version of OGR with ArcSDE-support? /Johan Johan Hallgren Sweco Position AB Telefon direkt +46 (0)23 46492 Mobil +46 (0)73 8006492 johan.hallg...@sweco.se ___ gdal-dev mailing list gdal

Re: [gdal-dev] A strange thing with a png geospatial file and gdalwarp. Is it a bug?

2013-09-04 Thread aborruso
Hi Hermann, thank you very much. peifer wrote > At least it isn't a bug. Without -s_srs, the CRS info from the png file is > used which specifies TOWGS84[0,0,0,0,0,0,0]. When specifying the EPSG code > via -s_srs, the parameter +nadgrids=@null is used (in both cases EPSG:3857 > and EPSG:3785). B

Re: [gdal-dev] A strange thing with a png geospatial file and gdalwarp. Is it a bug?

2013-09-04 Thread peifer
aborruso wrote > Dear all, > I have a geospatial png file - http://ge.tt/7tmMR7r/v/0?c -and gdalinfo > give me this projection info: > > PROJCS["Popular Visualisation CRS / Mercator", > GEOGCS["Popular Visualisation CRS", > DATUM["Popular_Visualisation_Datum", > SPHERO

Re: [gdal-dev] A strange thing with a png geospatial file and gdalwarp. Is it a bug?

2013-09-04 Thread Jean-Claude Repetto
Hello, I confirm the problem. I don't know how to fix the bug, nor if it really a bug in GDAL, but I can provide a workaround : use EPSG:3857 instead of EPSG:3785, which is obsolete. gdalwarp -s_srs epsg:3857 -t_srs EPSG:4326 -of GTiff "Avenue de Mont-de-Marsan.png" test.tif Upper Left (

Re: [gdal-dev] A strange thing with a png geospatial file and gdalwarp. Is it a bug?

2013-09-04 Thread aborruso
Here is the correct URL of the test file, sorry: https://dl.dropboxusercontent.com/u/103202/trash/file_test.zip -- View this message in context: http://osgeo-org.1560.x6.nabble.com/A-strange-thing-with-a-png-geospatial-file-and-gdalwarp-Is-it-a-bug-tp5075948p5075966.html Sent from the GDAL - De

[gdal-dev] A strange thing with a png geospatial file and gdalwarp. Is it a bug?

2013-09-04 Thread aborruso
Dear all, I have a geospatial png file - http://ge.tt/7tmMR7r/v/0?c -and gdalinfo give me this projection info: PROJCS["Popular Visualisation CRS / Mercator", GEOGCS["Popular Visualisation CRS", DATUM["Popular_Visualisation_Datum", SPHEROID["Popular Visualisation Spher

Re: [gdal-dev] GDAL 1.10 build fails on FreeBSD

2013-09-04 Thread Frank Broniewski
Am 2013-09-03 14:55, schrieb Frank Broniewski: Hi all, I tried updating Gdal to the latest version on my FreeBSD system, but the build fails: c postgisrasterdataset.cpp -fPIC -DPIC -o ../o/.libs/postgisrasterdataset.o postgisrasterdataset.cpp: In function 'void GDALRegister_PostGISRaster()':