An image mosaicing, reprojection and warping utility
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gdalwarp cant find libproj.dlib
Thought I had finally got Python, gdal and QGIS to play nicely together but just tried to do a batch transform using a bash script to call gdalwarp and it claimed it couldn't read the libproj.dlib ...
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115 views
How to stop gdalwarp creating world-spanning outputs near the dateline?
I'm using gdalwarp to manipulate SRTM tiles near the the dateline (i.e. 180°, aka the antimeridian). SRTM tiles have a very slight (1/2 pixel) overlap with the meridian. You can see this using ...
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Bug in gdalwarp's simple nearest neighbor? Or more likely I need some help
I'm trying to understand how to use the GDAL utilities a little better. I think I've defined something incorrectly or I've found a bug in gdalwarp. My bet is that I've defined something incorrectly, ...
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Need help tuning gdalwarp to match source cell size and alignment
I was hoping gdalwarp could merge and crop MODIS tiff images such that the original cell size and alignment is maintained. I tried the command below, but cell size is off slightly and cell alignment ...
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informations about “gdaltransform” utility of GDAL
I have a doubt about GDAL reprojection.
I use "gdalwarp" utility to reproject an image in a specific projection system (for example WGS84 UTM49).
"gdalinfo" on original image displays this corner ...
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How can I fix badly specified geographic coordinate system with units in arc-seconds?
Check out this depth-to-rock soil data. It is linked from here. The spatial reference system is a latlon, but the units are arcseconds. I could not reason out how to override the SRS even after ...
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Coarse heat map placement using gdal
I have generated a coarse heatmap of where data is available by 1 degree x 1 degree cells that I want to overlay on top of a world image. Using a python script I merged two images (heat map and a ...
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35 views
Size of output geotiff file not as in the .vrt file
I have the following vrt file (input.vrt) with GCPs in EPSG:3857
<VRTDataset rasterXSize="5409" rasterYSize="5408">
<Metadata />
<Metadata domain="IMAGE_STRUCTURE">
<MDI ...
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gdalwarp with -srcwin
I am trying to cut a window (in pixels) from a geotiff file and output in a different size. gdal_translate allows that but gives no option to set resampling, while gdalwarp allows resampling while it ...
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41 views
Reprojection problem with gdalwarp
I have a GeoTiff file with WGS84 datum projection and I'm trying to reproject it using gdalwarp. Using this command
gdalwarp -t_srs '+proj=tpers +azi=19 +tilt=30 +lon_0=-109.5 +lat_0=23 +h=1274199.4 ...
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GDAL Utilties - Multiple Bands with Different Output Types
I have a raster dataset with 5 bands. 4 of the bands are 8bit unsigned and the 5th band is 32bit floating point. I need to clip the dataset into tiles using GDAL (I'm using gdalwarp with a cutline ...
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how to stretch GMT raster with gdal to work with google
How can I stretch a PNG raster coming from GMT (Generic Mapping Tools 4.5.6) in such a way that does align with google satellite or bing? such raster is in wgs84 and crosses two UTM zones (17 and 18 ...
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36 views
project geotiff to NSIDC Sea Ice Polar Stereographic North (EPSG:3411) with gdalwarp
I a trying to project a signed byte .tiff file (sea ice concentration data) from a uniform unprojected grid (latitudes: -89.875° to 89.875° by 0.25°, longitudes:-179.875° to 179.875° by 0.25°) to ...
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93 views
How to re-project the EASE (Equal Area Scalable Earth) grid with a ~25 km cylindrical projection to WGS84 0.25 degree?
I have nc files ,here is one file https://echange-fichiers.inra.fr/get?k=LUfqiyO1Dl7az5bihnS. from the metadata ,the projection is cylindrical and the resolution is 25 km:
...
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79 views
gdalwarp instal of gdal_merge with -separate option
Is there any way to produce merged img file from two png files using gdalwarp just the same way gdap_mege with option -separate does it?
I just need two, three-layered files to be merged into one, ...
