[GRASSLIST:2620] v.net.path
Maliheh
malihehs at yahoo.com
Sun Feb 15 03:47:06 EST 2004
Hello dear list,
I have some problems in 5.7, I wish you help me...
1. Sometimes that I use of d.what.vect, it shows me:
Buttons
Left: what's here
Middle: toggle flash color
Right: quit
But when I click left key of the mouse on the map
nothing happens and if I do it again it shows:
Broken pipe
and quit from d.what.vect
2. When I am successful on use of d.what.vect, I have
these values on my street map:
...
Type: Point
field: 1
category: 6
...
-----------------------
...
Type: Point
field: 1
category: 160
...
Now I want to find the best path between two
points
so I use:
v.net.path input=Teh_Vect output=t2 type=line
afield=1 nfield=1
It shows:
Vector 't2' already exists and will be
overwritten.
Building graph:
Registering arcs ... 100%
Flattening the graph ... done.
Graph was built.
Now I write :
6 160 (Is it correct?)
But nothing happens.
------------------------------------------------------
I changed my command like this:
v.net.path input=Teh_Vect output=t4 afield=1 nfield=2
Now it shows:
Building graph:
Registering arcs ... 100%
Flattening the graph ... done.
Graph was built.
WARNING: 61 points without category.
6 160
WARNING: No point with category 6
WARNING: No point with category 160
Would you please tell me my wrong and explain me more
about v.net.path?
Thanks a lot
Maliheh
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