Open your graphics display
Display -> Monitors -> Start -> x0
Display a raster map
Display -> Raster -> Display raster maps
Display only selected values
Display a shaded elevation map using elevation and aspect raster
Display -> Raster -> Display shaded raster map
Display a vector map
Display -> Vector -> Display vector maps
Display a sites map
Display -> Site -> Display site maps
Display 3D map with elevation color and vector map
d.mon x0
d.rast ch20ftdem
d.rast ch20ftdem val=200-400
d.shademap h_map=ch20ftdem i_map=ch20ftasp
resulting map
d.vect chstreets co=black
d.sites chgreendtm co=brown size=1
nviz ch20ftdem vect=chstreets
nviz ch20ftdem sites=chgreendtm