I am trying to understand GRASS GIS to model the transport of solute.
I followed the example of the GrassGIS manual and set up a region within a XY projection. I also used r.mapcalc to generate a raster map. Now I want to display the raster map. But when I execute
"d.rast map=phead@PERMANENT bgcolo=red"
the console shows
"GRASS_INFO_ERROR(18956,1): Field <zone> missing
GRASS_INFO_END(18956,1)".
Well, how do I display the raster map?
d.erase
, then againd.rast map=phead@PERMANENT bgcolor=red