I have rasters from the National Elevation Dataset loaded into a PostGRES database and am using the built-in function ST_Slope to calculate the slope. However these contain many holes where there is valid elevation data.
Here is my query:
SELECT (ST_DumpValues(ST_Slope(raster), ARRAY[1], False)).valarray as slopeFROM nat_elev_dataLIMIT 1;I suspect that I need to pass additional parameters but am not sure what.
أكثر...
Here is my query:
SELECT (ST_DumpValues(ST_Slope(raster), ARRAY[1], False)).valarray as slopeFROM nat_elev_dataLIMIT 1;I suspect that I need to pass additional parameters but am not sure what.
أكثر...