[GRASS-dev] d.vect: support for z height (geometry) colors added

[Dylan Beaudette]

On Sat, May 17, 2008 at 6:37 AM, Markus Neteler <neteler at osgeo.org> wrote:
> Hi,
>
> after getting mad with Lidar points colorizing which till now
> required a DB table with GRASSRGB attributes, I have
> modified d.vect to support colors directly from z height (geometry).
> Works for 3D points, lines (eg, 3D contours) and 3D polygons
> (eg delaunay triangles):
>
> # Spearfish:
> g.region rast=elevation.10m
> r.random elevation.10m n=5000 vector=random3d -d
> d.mon x0
> # display as black points
> d.vect random3d
> # display 3D points colorized according to z height
> d.vect -z random3d zcol=gyr
>
> # 3D contour lines
> r.contour elevation.10m out=contour20m step=20
> d.vect -z contour20m zcol=gyr
>
> # generate 3D triangles
> v.delaunay random3d out=random3d_del
> # display 3D polygons colorized according to z height
> d.vect -z random3d_del type=area zcol=gyr
>
> Enjoy,
> Markus
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>

Thanks for adding this feature Markus. I can see several immediate
uses in my work!

Cheers,

Dylan