[GRASSLIST:2131] v.buffer question
Miha STAUT
mihastaut at hotmail.com
Mon Jan 5 09:15:23 EST 2004
Hi,
GRASS:/home > v.info drag.f
+----------------------------------------------------------------------------+
| Layer: drag.f Date: 7.7.2003
|
| Mapset: PERMANENT Organization: MIHA STAUT DIPLOMSK
|
| Location: d Name of creator: Miha Staut
|
| DataBase: /home/miha
|
| Title: ( drag.f)
|
|----------------------------------------------------------------------------|
|
|
| Type of Map: Vector (level: 2) Number of Categories: 1
|
| Number of lines: 1
|
| Number of areas: 1
|
| Number of islands: 1
|
|
|
| Projection: UTM (zone 33)
|
| N: 194000 S: 30000
|
| E: 623000 W: 375000
|
|
|
| Source date:
|
| Original scale 1:25000
|
| Map threshold: 0.00000
|
| Comments:
|
|
|
|
|
+----------------------------------------------------------------------------+
(I know v.info is from GRASS 5.3. I just wanted to show what type of vector
I am dealing with.)
v.buffer in=drag out=drag.buff type=area buff=500
Areas buffers ... 100%
Building parts of topology ...
1 primitives registered
Number of nodes : 1
Number of primitives: 1
Number of points : 0
Number of lines : 0
Number of boundaries: 1
Number of centroids : 0
Number of areas : -
Number of isles : -
Snapping boundaries ...
All vertices: 6115
Registered points (unique coordinates): 1725
Nodes marked as anchor : 1723
Nodes marked to be snapped : 2
Snapped vertices : 1465
New vertices : 17
Breaking boundaries ...
Intersections: 0
The command ran for 2 hours and did not manage to buffer the vector. What
have I done wrong? Why did the v.buffer show no area if I converted an area
vector to GRASS 5.7?
Thanks, Miha Staut
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