#2636: v.buffer, allow selection of columns for opts "distance",
"minordistance",
and "angle"
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Reporter: isaacullah | Owner: grass-dev@…
Type: enhancement | Status: new
Priority: normal | Milestone: 7.0.4
Component: Vector | Version: svn-releasebranch70
Resolution: | Keywords: v.buffer, columns
CPU: x86-64 | Platform: Linux
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Comment (by mmetz):
Replying to [ticket:2636 isaacullah]:
> Currently, v.buffer only allows a column selection for single radius
(opt "column"), but allows the creation of "oblong" buffers using the
manual entry opts "distance", "minordistance", and "angle". v.buffer would
be a lot more useful if these could all simply be column selectable too.
For example, if I have a large vector points file of archaeological site
locations, and I have BOTH a length and width column (and, potentially, a
"site axis direction" column too), then I could make a "buffer" map of the
actual site size and orientation. Currently, in v.buffer, I can only use a
calculated "average" site radius column, and make circular buffers for
these sites.
The options "minordistance" and "angle" apply only to the GRASS-internal
buffering method which never worked. It is recommended to use only the
GEOS buffering method, but it does not support these options to create
oblong buffers. To avoid confusion, the options "minordistance" and
"angle" should be removed.
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Ticket URL: <https://trac.osgeo.org/grass/ticket/2636#comment:5>
GRASS GIS <https://grass.osgeo.org>
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