On Feb 23, 2010, at 12:37 PM, grass-user-request@lists.osgeo.org wrote:
Date: Tue, 23 Feb 2010 09:46:13 -0800 (PST)
From: Rich Shepard <rshepard@appl-ecosys.com>
Subject: [GRASS-user] v.overlay Limited In wxPython GUI
To: grass-users@lists.osgeo.org
Message-ID: <alpine.LNX.2.00.1002230942540.6523@salmo.appl-ecosys.com>
Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII
I tried to extract the streams within a specific drainage basin using the
wxPython GUI and the v.overlay function. It fails because it assumes the
operation is 'or' (set UNION) and does not permit the user to select a
different operator.
To write only those streams within the named basin to an output file
requires the set operator INTERSECT, or 'and.' I did not see anywhere on the
GUI window tabs where the operator could be selected. If I missed it, please
point that out to me. Else, consider adding a widget to select the operator.
Rich
I just looked at this in GRASS 7 and there is a pull down choice control for "operator defines features written to output vector map:" The pull-down lists and, or, not, and xor. Is this missing on GRASS 6.4?
2010/2/23 Michael Barton <michael.barton@asu.edu>:
[...]
I just looked at this in GRASS 7 and there is a pull down choice control for "operator defines features written to output vector map:" The pull-down lists and, or, not, and xor. Is this missing on GRASS 6.4?
I just looked at this in GRASS 7 and there is a pull down choice control
for "operator defines features written to output vector map:" The
pull-down lists and, or, not, and xor. Is this missing on GRASS 6.4?
I just looked at this in GRASS 7 and there is a pull down
choice control for "operator defines features written to
output vector map:" The pull-down lists and, or, not, and
xor. Is this missing on GRASS 6.4?
that requires GRASS to be built with GEOS support, which AFAIK
was added after the major feature freeze for 6.4.
I just looked at this in GRASS 7 and there is a pull down
choice control for "operator defines features written to
output vector map:" The pull-down lists and, or, not, and
xor. Is this missing on GRASS 6.4?
that requires GRASS to be built with GEOS support, which AFAIK
was added after the major feature freeze for 6.4.
GEOS support is related to v.select not v.overlay.