How to make a defined TIN which looks like
*-----*------*
| / | \ |
| / | \ |
*-----*------*
| \ | / |
| \ | / |
*-----*------*
out of the following point set?
cat tin.asc
x,y,z
0,0,0
0,10,1
0,20,2
10,0,1
10,10,3
10,20,4
20,0,1
20,10,4
20,20,5
v.in.ascii -z tin.asc out=tinpoints z=3 fs=',' skip=1
The output from
v.delaunay tinpoints out=tin
g.region vect=tinpoints
d.mon x0
d.vect tin
looks quite different... I wonder if there is a trick using
centroids or just fixing the order (left hand rules?).
Markus