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
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","+
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
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
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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
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
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can provide a workaround : use EPSG:3857 instead of EPSG:3785, which is
obsolete.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 (
Here is the correct URL of the test file, sorry:
https://dl.dropboxusercontent.com/u/103202/trash/file_test.zip
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Sent from the GDAL - De
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
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()':
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