Open 12rambau opened 2 years ago
Fix #62
I computed the alpha channel as it is done for rgb images. My assomption is that single band dataset will always use np.nan as a nodata value.
np.nan
At first I wanted to use:
alpha = np.where(das[0]==self._da.rio.nodata, 0, 1)
but if nodata is np.nan it always returns 1. If you know a trick that could work for any value + np.nan that would be great. if not, the assumption I made seems to be commonly accepted. e.g @giswqs use the same in the add_raster method of geemap: https://github.com/giswqs/geemap/blob/13c83f59ebc6790b531277c5908859d4cb5ec190/geemap/geemap.py#L3526
nodata
add_raster
geemap
Fix #62
I computed the alpha channel as it is done for rgb images. My assomption is that single band dataset will always use
np.nanas a nodata value.At first I wanted to use:
but if
nodataisnp.nanit always returns 1. If you know a trick that could work for any value +np.nanthat would be great. if not, the assumption I made seems to be commonly accepted. e.g @giswqs use the same in theadd_rastermethod ofgeemap: https://github.com/giswqs/geemap/blob/13c83f59ebc6790b531277c5908859d4cb5ec190/geemap/geemap.py#L3526