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gdalwarp changes my single band DEM into a multi-band raster with PyQGIS

QGIS 3.16, Ubuntu 20.04 I am trying to take the DEM I have as a GeoTIFF and change from one CRS to another using gdalwarp, saving the result as another GeoTIFF. The problem is that my incoming raster is a single band 32 bit float datatype. The saved one ends up an 8 bit multi-band. […]

Categories
Ask Geographic Information System (GIS)

gdalwarp changes my single band DEM into a multi-band raster with PyQGIS

QGIS 3.16, Ubuntu 20.04 I am trying to take the DEM I have as a GeoTIFF and change from one CRS to another with gdalwarp, saving the result as another GeoTIFF. The problem is that my incoming raster is a single band 32 bit float datatype. The saved one ends up an 8 bit multi-band. […]

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Ask Geographic Information System (GIS)

Why does “clip raster by mask layer” in QGIS seem to take forever?

I have successfully used the "Clip" operation to trim a vector layer by another vector layer. Now I’m trying to do the same thing with a raster layer using "Clip raster by mask layer", but it seems to be taking forever: after watching the "Processing algorithm…" message for several (> 5) minutes with no sign […]