I have very simple shapefile, which consists of couple of polygons, and I wanted to snap boundaries automatically. Unfortunately qgis doesn't have such function, but grass has according this answer: How to check Topology in QGIS?
I followed provided walk-through, i.e. I made new grass mapset, then imported shapefile layer from qgis, but when I wanted to apply v.clean.break or v.clean.snap command, I couldn't select input vector map as there was not option to select one (FYI I also did refresh in Browser tab):
Browser shows that there is one, but all values are zero, so I wonder if I made a mistake somewhere:
I then deleted created mapset and closed qgis, then opened grass to do the same task but now by just using grass. I imported shapefile to vector mapset but it's just same issue, it's like mapset is empty or something like that.
I use up to date OSGeo4W environment.
What could be issue here?
Update:
(Tue Dec 11 17:09:11 2012)
v.in.ogr dsn=C:\Temp\geo\1.shp layer=1 output=x
Projection of input dataset and current location appear to match
Layer: 1
Counting polygons for 11 features...
Importing map 11 features...
-----------------------------------------------------
Building topology for vector map <x_tmp>...
Registering primitives...
0 primitives registered
0 vertices registered
Number of nodes: 0
Number of primitives: 0
Number of points: 0
Number of lines: 0
Number of boundaries: 0
Number of centroids: 0
Number of areas: -
Number of isles: -
Building topology for vector map <x>...
Registering primitives...
0 primitives registered
0 vertices registered
Building areas...
0 areas built
0 isles built
Attaching islands...
Attaching centroids...
Number of nodes: 0
Number of primitives: 0
Number of points: 0
Number of lines: 0
Number of boundaries: 0
Number of centroids: 0
Number of areas: 0
Number of isles: 0
(Tue Dec 11 17:09:13 2012) Command finished (1 sec)
