v.delaunay manual: example updated to NC; figure added

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@58629 15284696-431f-4ddb-bdfa-cd5b030d7da7

vector/v.delaunay/v.delaunay.html

@@ -3,48 +3,23 @@
 <em>v.delaunay</em> uses an existing vector points map (<b>input</b>)
 to create a Delaunay triangulation vector map (<b>output</b>).
 <p>
-<br>
-Delaunay triangulation and Voronoi diagram example:
+Delaunay triangulation example (red-yellow points are the data points from which the triangulation was generated):
 <center>
-<img src="v_voronoi_delaunay.png" border="1"><br>  <!-- installed by v.voronoi -->
-<table border="0" width="590">
-<tr><td><center>
-<i>Delaunay Triangulation (left pane), Voronoi diagram (center pane),
-and both (right pane)</i>
-</center></td></tr>
-</table>
+<img src="v_delaunay.png" border="1">
 </center>
 
 
 <h2>EXAMPLE</h2>
 
-Commands used with the Spearfish dataset to create the above figure.
+Commands used with the North Carolina dataset to create the above figure (subset shown in figure).
 <div class="code"><pre>
-  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
+g.region n=220750 s=219950 w=638300 e=639000 -p
+v.delaunay input=elev_lid792_randpts output=elev_lid792_randpts_delaunay
 </pre></div>
 
 
 <h2>REFERENCES</h2>
-<em>Leonid Guibas and Jorge Stolfi, (1985). 
-Primitives for the 
+<em>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 74-123
@@ -63,5 +38,5 @@ Martin Pavlovsky, Google Summer of Code 2008, Student<br>
 Paul Kelly, Mentor<br>
 Based on "dct" by Geoff Leach, Department of Computer Science, RMIT.<br>
 
-
-<p><i>Last changed: $Date$</i>
+<p>
+<i>Last changed: $Date$</i>