[GRASSLIST:97] Splitted lines and area feature...

GRASS GRASS user
1

Hi guys,
after importing an SHP delimiting an area, i converted to boundayres and then
After checking the line, i notice that some parts of it are splitted.

Is there a way to ceck lines and to rejoin them if are splitted?

Thx
Luca

--
"E' molto più bello sapere qualcosa di tutto, che tutto di una cosa (Blaise
Pascal)."

GENTOO-GIS Development Team
jabber: casagrande@jabber.linux.it

2

On Tue, Mar 14, 2006 at 07:26:51PM +0000, Luca Casagrande wrote:

Hi guys,
after importing an SHP delimiting an area, i converted to boundayres and then
After checking the line, i notice that some parts of it are splitted.

Is there a way to ceck lines and to rejoin them if are splitted?

maybe v.build.polylines?

Markus

3

On Tue, Mar 14, 2006 at 07:26:51PM +0000, Luca Casagrande wrote:

Hi guys,
after importing an SHP delimiting an area, i converted to boundayres and then
After checking the line, i notice that some parts of it are splitted.

Is there a way to ceck lines and to rejoin them if are splitted?

Again. what I understood from your IRC chat (was it you?)
is that you added a centroid but the area doesn't appear.
This suggests that the line aren't snapped. v.build.polyline
won't help, you have to snap first (v.clean). And/or
check with v.build, there is an error= option to write
bad vectors to an extra map.

Markus

4

after importing an SHP delimiting an area, i converted to boundayres
and then After checking the line, i notice that some parts of it are
splitted.

Is there a way to ceck lines and to rejoin them if are splitted?

v.clean tool=snap

Hamish