Hello list,
I have a conectual problem
We have a directed vector map, i.e.roads in spearfish dataset, I use:
d.vect roads display=dir
to view that. GRASS 5.7 shows it and display some arrows for directions.
then I use d.path to find path between two points.
It works and draw a red line for path, but it goes irregularly through one ways.
why? despite arrows show directions of roads, don’t they?
Please help me in this way.
Regards
Maliheh
Hello list,
I have a conectual problem
We have a directed vector map, i.e.roads in spearfish dataset, I use:
d.vect roads display=dir
to view that. GRASS 5.7 shows it and display some arrows for directions.
then I use d.path to find path between two points.
It works and draw a red line for path, but it goes irregularly through one
ways. why? despite arrows show directions of roads, don't they?
Arrows show direction, but all net modules take lines as bidirectional
if 'abcol' option is not used. Use -1 as costs to close one direction.
