v.split manual: examples updated

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@68038 15284696-431f-4ddb-bdfa-cd5b030d7da7

vector/v.split/v.split.html

@@ -9,36 +9,42 @@ parameter.
 
 The examples are based on the North Carolina sample data location.
 
-<h3>Example 1: Inserting nodes to railroad map</h3>
+<h3>Example 1: Inserting nodes to railroad lines map</h3>
 
 <div class="code"><pre>
-# extract data for this example
-v.extract railroads out=myrr cats=1
+# extract one railroad line for this example
+v.extract input=railroads output=myrr cats=1
 
 # show line, category, direction (to find the beginning)
-d.vect myrr disp=shape,cat,dir
+g.region vector=myrr
+d.erase
+d.vect myrr display=shape,cat,dir
 
 # insert nodes at a distance not longer than 1000m
-v.split myrr out=mrr_split length=1000
-d.vect myrr_split disp=shape,topo
+v.split input=myrr output=myrr_split_1km length=1000
+
+d.vect myrr_split_1km display=shape,topo
 </pre></div>
 
-Note: In case the data is not a polyline, build polylines in second step, eg.:
+<p>
+Note: In case that the vector line data are not polylines,
+generate first polylines as the second step, eg.:
 
 <div class="code"><pre>
 # join segments into polyline
-v.build.polylines myrr out=myrr_poly
-v.category myrr_pol out=myrailroads option=add
+v.build.polylines input=myrr output=myrr_polylines
+# regenerate categories
+v.category input=myrr_polylines output=myrailroads option=add
 </pre></div>
 
-<h3>Example 2: Inserting vertices to railroad map</h3>
+<h3>Example 2: Inserting vertices to railroad lines map</h3>
 
 Note: first run the two steps from example 1.
 
 <div class="code"><pre>
 # insert vertices at a distance not longer than 1000m
-v.split -n myrr out=myrr_split length=1000
-d.vect myrr_split disp=shape,topo
+v.split -n input=myrr output=myrr_split length=1000
+d.vect myrr_split display=shape,topo
 </pre></div>