Hi,
do you know if it's possible to use v.distance command when "for" and "to" layers are
the same layer ?
I have a layer describing ecological areas of interest and I want to qualify spatial
relation between all patches. I want to identify and calculate shortest relation between
all my patches boundaries.
How can I do as v.distance command doesn't have any option like : eliminate identical
objects from the "from" and "to" layer ?
I'd like to use this particular command because of the option that create lines between
nearest objects.
Thanks
Nicolas
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.
do you know if it's possible to use v.distance command when
"for" and "to" layers are
the same layer ?
I have a layer describing ecological areas of interest and
I want to qualify spatial
relation between all patches. I want to identify and
calculate shortest relation between
all my patches boundaries.
How can I do as v.distance command doesn't have any option
like : eliminate identical
objects from the "from" and "to" layer ?
I'd like to use this particular command because of the
option that create lines between
nearest objects.
use g.copy or v.extract as a first step to separate/duplicate the
features?
do you know if it's possible to use v.distance command when
"for" and "to" layers are
the same layer ?
I have a layer describing ecological areas of interest and
I want to qualify spatial
relation between all patches. I want to identify and
calculate shortest relation between
all my patches boundaries.
How can I do as v.distance command doesn't have any option
like : eliminate identical
objects from the "from" and "to" layer ?
I'd like to use this particular command because of the
option that create lines between
nearest objects.
use g.copy or v.extract as a first step to separate/duplicate the
features?
Hamish
g.copy will duplicate features, but will not avoid v.distance to search distance between "from" layer feature to all features except itself in the "to" layer. Or do you mean to do a script that isolate iteratively each feature from the cover time by time (it might be very long as I have a lot of features...) and use v.distance as many time as features number ?
Nicolas
--
------------------------------------------------------------------------------
Nicolas DEVAUX
Laboratoire d'étude des Interactions entre Sol, Agrosystème et Hydrosystème
UMR LISAH AgroM-INRA-IRD
Bat. 24
place Viala
34060 Montpellier cedex 1