On Wed, 24 Jul 2019, Carlos Henrique Grohmann de Carvalho wrote:

This might sound silly but have you checked your region? Perhaps the
region is not on the same place of your raster? Didi you tried 'zoom to
layer' or 'zoom to region'?

Carlos

Not a silly question at all. I tried 'zoom to layer' with no results.

However, there is a mask for the vector map, 'analytical_area', which is
much smaller the area covered by the DEM. The region is also set to the
analytical_area map and this might be the issue. Changing the region to the
raster DEM does not allow the map to display.

While waiting for a solution to the display issue I tried running r.flow on
the DEM and aspact maps. Grass refused because of a region resolution
discrepancy between the analytical_area and DEM maps:

DEM resolution: 3 3
analytical_area resolution: 2.99763360 3.00134608

'g.region vect=analytical_area res=3 -p' did not change the floating point
values to integer 3s.

Thanks,

Rich
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