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v.delaunay(1grass) | Grass User's Manual | v.delaunay(1grass) |
NAME¶
v.delaunay - Creates a Delaunay triangulation from an input vector map containing points or centroids.KEYWORDS¶
vector, geometry, triangulationSYNOPSIS¶
v.delaunayFlags:¶
- -r
-
- -l
-
- --overwrite
-
- --verbose
-
- --quiet
-
Parameters:¶
- input=name
-
- output=name
-
DESCRIPTION¶
v.delaunay uses an existing vector points map (input) to create a Delaunay triangulation vector map ( output).EXAMPLE¶
Commands used with the Spearfish dataset to create the above figure.g.region n=4927250 s=4919400 w=588650 e=594850
d.frame -c fr=one at=0,100,0,33.3333
d.frame -c fr=two at=0,100,33.3333,66.6667
d.frame -c fr=three at=0,100,66.6667,100
v.delaunay -lr in=archsites out=arch_delaunay
d.frame -s one
d.vect arch_delaunay
d.vect archsites color=red fcolor=red size=5 icon=basic/circle
v.voronoi -l in=archsites out=arch_voronoi
d.frame -s two
d.vect arch_voronoi type=line
d.vect archsites color=red fcolor=red size=5 icon=basic/circle
d.frame -s three
d.vect arch_voronoi type=line
d.vect arch_delaunay color=blue
d.vect archsites color=red fcolor=red size=5 icon=basic/circle
REFERENCES¶
Leonid Guibas and Jorge Stolfi, (1985). Primitives for the Manipulation of General Subdivisions and the Computation of Voronoi Diagrams, ACM Transactions on Graphics, Vol 4, No. 2, April 1985, Pages 74-123SEE ALSO¶
v.voronoi, v.hullAUTHORS¶
Martin Pavlovsky, Google Summer of Code 2008, StudentGRASS 6.4.2 |