All Questions
5 questions
1
vote
1
answer
362
views
Snapping two topology layers together based on point
In QGIS 3.14.15 with GRASS 7.8.3 I have two layers both with correct topology that function how they should. When using the Network Analysis > Service Area tool, they work as they are supposed to. ...
2
votes
1
answer
321
views
How to solve "features were not reachable" warning message using v.net.distance in GRASS
I'm using GRASS 7.0.4 under Linuxmint 17.1 KDE.
I need to build a raster with the shortest distance from every pixel to a city following a road. I have two shape files, the city (point) and the road (...
- 193
1
vote
0
answers
799
views
Removing pseudo-nodes using QGIS Sextante plugin?
I have a road network (vector) that i'm interested in carrying out some space syntax analysis on.
Predictably my GIS data is in a pretty terrible state. For example, there are a bunch of roads on the ...
- 559
1
vote
1
answer
208
views
Grass GIS "v.in.ogr": How to prevent crossing lines from beeing split where they don't share a common node?
I want to import a road network into grass gis to run network analyses. I use "v.in.ogr" to import my road shapefile. The problem is that Grass GIS seems to split every crossing line no matter if they ...
- 1,958
17
votes
4
answers
5k
views
How to connect lines in a network?
I have a shapefile of lines and another of polygons. When two or more lines intersect a polygon they should be connected (snapped), but sometimes during manual digitization this doesn't occur. I need ...
- 5,618