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Vectorize slope-angle shading polygons? #2

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kylebarron opened this issue Dec 5, 2019 · 1 comment
Open

Vectorize slope-angle shading polygons? #2

kylebarron opened this issue Dec 5, 2019 · 1 comment

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@kylebarron
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Instead of using gdaldem color-relief to generate a raster with colors, you should investigate vectorizing the slope-angle (non-color-relief) raster. Then you only have to store the vector polygons of given slope angles.

So vectorize polygons while binning into whole-degrees? Or bin into Caltopo's color scheme bins?
@kylebarron
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I ran out of memory on my mac while trying to run gdal_polygonize.py on the binned color-ramp file.

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@kylebarron