Am 17.01.2014 23:37, schrieb Even Rouault:
You should likely create a GDAL Trac ticket with your report and the patch,
but I'm not sure who will dare hurting his head against this wall...
This ticket should have the same issue already:
https://trac.osgeo.org/gdal/ticket/4954
For the QGIS
I noticed that qgis-2.0 also has a problem with this file, but places it
around 54 degrees west longitude (if using on-the-fly reprojection to
WGS84).
The CRS is different from that identified by gdal (the lon_0, units and
datum are different)
qgis:
+proj=lcc +lat_1=40.97
As far as I can see: lon_0 is the same in both cases and there is also
no actual difference between +datum=NAD83 (gdal) and +ellps=GRS80
+towgs84=0,0,0,0,0,0,0 (qgis).
I am not sure where +x_0=60 (qgis) comes from, but gdal's +x_0 value
is simply 6458320.41666 * 0.3048006096012192 =
Am 18.01.2014 21:52, schrieb Hermann Peifer:
As far as I can see: lon_0 is the same in both cases and there is also
no actual difference between +datum=NAD83 (gdal) and +ellps=GRS80
+towgs84=0,0,0,0,0,0,0 (qgis).
I am not sure where +x_0=60 (qgis) comes from, but gdal's +x_0 value
is
Hi,
I've downloaded several DEMs (e.g 27002570PAS_dem.zip) from
ftp://pamap.pasda.psu.edu/pamap_lidar/cycle1/DEM/South/2008/2000/.
Gdalinfo is reporting the corner coordinates to be in the vicinity of 91
degrees 31 minutes west longitude which should be more like 75 degrees 36
minutes
Hi,
yes, this is a bug. The same error on last trunk gdal and also QGIS.
I think the problem is in reprojection (lost linear units). The file
have linear unit as us_survey_feet (0.304801).
It's interesting does gdal support such projection? May be is is
unsupported.
Best regards,
Dmitry
Hi,
yes, this is a bug. The same error on last trunk gdal and also QGIS.
I think the problem is in reprojection (lost linear units). The file
have linear unit as us_survey_feet (0.304801).
It's interesting does gdal support such projection? May be is is
unsupported.
Best regards,
Dmitry
Le vendredi 17 janvier 2014 21:28:35, Reynolds, Scott a écrit :
Hi,
I've downloaded several DEMs (e.g 27002570PAS_dem.zip) from
ftp://pamap.pasda.psu.edu/pamap_lidar/cycle1/DEM/South/2008/2000/.
Gdalinfo is reporting the corner coordinates to be in the vicinity of 91
degrees 31
