All Questions
38
questions
0
votes
1
answer
184
views
Passing geometry dataset type to gdal.Warp() for a clip operation - order of operations and file type confusion
Trying to wrap my head around the correct order of operations and file type(s) required by gdal.Warp().
I have a valid geometry object created from the shapely object.unary_union.convex_hull method. ...
- 109
0
votes
1
answer
55
views
Can't use Polygon to Clip Raster
I created a polygon to use to clip a DTM raster (DEMTiff), but the Clip by Mask tool gives an error:
GDAL command:
gdalwarp -overwrite -of GTiff -cutline temp.shp -cl temp -crop_to_cutline "D:\\...
- 1
0
votes
1
answer
95
views
Is it possible to warp a raster using -te in other projection?
I have some files in EPSG:4326 and some in "ESRI:102027".
I use warping with -te argument in EPSG:4326:
gdalwarp -overwrite -of GTiff -t_srs srs -te xmin ymin xmax ymax -te_srs "EPSG:...
1
vote
1
answer
485
views
Using Raster Calculator without Clipping to Extent of Smallest Raster (QGIS)
(QGIS3) I'm trying to create a raster layer that is the sum of 2 layers, but I do not want to clip to the smallest extent. The raster calculator in QGIS automatically trims the new file to the ...
- 61
0
votes
0
answers
372
views
Cropping tile map into raster using QGIS
I want to create a layer background for my data map.
I am using a WMTS layer or a mbtile file (layer B), it could be an OpenStreetMap.
My plan is to merge this layer with a data layout which has holes ...
- 869
1
vote
1
answer
431
views
Inconsistent results between gdalWarp (with cutline) and rasterio.mask
Cropping with GDAL cutline vs Rasterio.mask with crop=True results in arrays with different sizes (by one row). I've tested the different Rasterio options but no luck. I'm hoping to match the GDAL ...
- 429
4
votes
1
answer
163
views
Gdalwarp clip with negative buffer
Is there any simple way to change this command:
gdalwarp -tr 10 10 -cutline "shape.shp" -crop_to_cutline -of GTiff "S1A_IW_GRDH_1SDV_20200719T161950_20200719T162015_033526_03E28C_C720....
- 344
1
vote
1
answer
434
views
Cropping with GDAL python outputs a black section in the image
I am trying to crop an image using GDAL python.
I have tried using both gdal.Warp and gdal.Translate, and both keep bringing the same result.
I have an image that I have orthorectified using gdal.Warp ...
0
votes
1
answer
207
views
Clip Raster with Shapefile GDAL API
I am trying to clip a raster using a polygon an GDAL. The following code is running without an error but the ouputimage is all zeros. All files are in the same CRS. Is there a way to use GdalWarp with ...
- 3
0
votes
2
answers
1k
views
Problem with gdal.WarpOptions concerning reference
I have a tiff file that I want to crop down to a shp cutline and reproject.
If the code is:
clip_spec=gdal.WarpOptions(format='GTiff',cutlineDSName=os.getcwd()+'/moksha/DEM/cutline2.shp',cropToCutline=...
3
votes
1
answer
791
views
Cropping raster file with GDAL warp C++ API
I need to crop a DEM raster file with a shapefile. This shapefile has many polygons. I need to calculate several variables after the crop operation.
The algorithm is written in C++ so I want to call ...
- 310
2
votes
1
answer
648
views
Incorrect results while cropping with gdalwarp and cutlineSQL
Environment: Windows 10, Python 3.7, Numpy 1.18 and GDAL 3.0.2
Data required:
Single band raster
Polygons on same area with an attribute "name"
The code below works fine and cuts the data ...
- 610
2
votes
1
answer
760
views
Results of gdalwarp from UTM32 to EPSG:4326 are not aligned?
I've a Sentinel 2 jp2 in UTM32 with this metadata:
Files: T32UQD_20200421T102021_TCI_60m.jp2
Size is 1830, 1830
Coordinate System is:
PROJCS["WGS 84 / UTM zone 32N",
GEOGCS["WGS 84",
...
- 483
0
votes
0
answers
572
views
Shifting in pixel after subsetting with gdalwarp
I am trying to subset multiple image to smaller Area of interest
I have tried with gdal_translate & gdalwarp in commandline but it causes slight shift in pixel in the output raster after cropping/...
- 57
1
vote
1
answer
183
views
Errors clipping a raster with a vector mask layer
I am running QGIS 3.4.14 (current stable version) on OSX Mojave 10.14.5.
I have a vector mask that I want to use to clip out a region of an image. Image was a jpeg originally but I translated it to a ...
- 189