Difference between revisions of "Points Edge Selection"

From GRASS-Wiki
Jump to: navigation, search
 
m (OldGRASSVersion)
 
(One intermediate revision by one other user not shown)
Line 1: Line 1:
'''Q''': In a site map, how to select all the points that are at the edge?  
+
{{OldGRASSVersion}}
 +
 
 +
 
 +
'''Q''': In a site map, how to select all the points that are at the edge?
  
 
'''A''': Just an idea:
 
'''A''': Just an idea:
Line 7: Line 10:
 
Then 'v.select op=overlap' (or v.overlay) to fetch the points within the  
 
Then 'v.select op=overlap' (or v.overlay) to fetch the points within the  
 
buffer (see GrassSixTutorialFaq#5_Clipping_points)
 
buffer (see GrassSixTutorialFaq#5_Clipping_points)
 +
 +
 +
[[Category:Documentation]]
 +
[[Category:FAQ]]

Latest revision as of 02:45, 5 February 2013


Q: In a site map, how to select all the points that are at the edge?

A: Just an idea:

Use v.out.region to create a box (set size with g.region) or use v.hull. Then v.type to change the area to a line. Then v.buffer to buffer it. Then 'v.select op=overlap' (or v.overlay) to fetch the points within the buffer (see GrassSixTutorialFaq#5_Clipping_points)