27,081 reputation
31344
bio website
location Germany
age
visits member for 2 years, 3 months
seen 1 min ago

20h
comment Gdal/QGIS resampling asc file
You get a four-band RGBA file, maybe you should force one-band float or integer with -ot. Your extent data looks like degrees, and cellsize is not 1000 meters, but 0.00833 degrees.
21h
comment Gdal/QGIS resampling asc file
What do you get if you run galinfo on the input file? Maybe you have to add extent and SRS as well.
21h
comment Gdal/QGIS resampling asc file
Why not use a .vrt for temporary output? Saves a lot of disk space...
21h
comment Gdal/QGIS resampling asc file
You can find a list of direct output formats here: gis.stackexchange.com/questions/101387/…
1d
revised Re-project from Polar projection to EPSG:4326
added 129 characters in body
1d
comment gdal_polygonize unable to open PNG
If you are working inside the OSGeo4W Shell, the environment is set correctly. This would apply to all GDAL routines.
1d
comment Re-project from Polar projection to EPSG:4326
I added a few more steps from my workaround. It is a bit trial and error. Looking at the map in polar stereo helps to see if it fits to Natural Earth vectors or not. Note that your new projection has units=km.
1d
revised Re-project from Polar projection to EPSG:4326
added 520 characters in body
1d
comment gdal_polygonize unable to open PNG
Try again with the full path name before star.png.
1d
revised Re-project from Polar projection to EPSG:4326
added 1555 characters in body
1d
comment How do I plot points that have relative coordinates rather than total station coordinates on a map?
Sometimes QGIS needs to be forced to refresh. After leaving editing mode, just pan the canvas a bit, or zoom to extent to force it.
2d
comment QGIS CRS correct, but layers appear warped
What data did you use to build the polygon?
2d
revised Re-project from Polar projection to EPSG:4326
edited title
2d
revised Re-project from Polar projection to EPSG:4326
added 282 characters in body
2d
comment Using Proj4js in Openlayers - Proj4js is not defined
Ah, it is hardcoded. But 1.1.0 has 606.0,23.0,413.0. That was inaccurate and changed in original proj 2 years ago to 598.1,73.7,418.2,0.202,0.045,-2.455,6.7. See forum.openstreetmap.org/viewtopic.php?id=12723 for all possible values.
2d
answered Re-project from Polar projection to EPSG:4326
2d
comment Using Proj4js in Openlayers - Proj4js is not defined
@ThomasG77 I doubt that +datum=potsdam is implemented in Proj4js. I would suggest to use the correct +towgs84 in any case.
2d
revised Could not open/read USGS raster file
added 8 characters in body
2d
comment QGIS CRS correct, but layers appear warped
The other case you mention was about different towgs84 parametersets. This should have nothing to do with WGS84 UTM imagery which has alwasy towgs84=0. Are you complaining about the black parts, or should the yellow polygon fit to the image?
2d
revised How to create several header files to open AVHRR NDVI3g (GIMMS) files?
added 48 characters in body