#848: v.in.mapgen: allow direct input from stdin
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Reporter: hamish | Owner: grass-dev@lists.osgeo.org
Type: enhancement | Status: new
Priority: normal | Milestone: 7.0.0
Component: Vector | Version: svn-trunk
Keywords: v.in.mapgen | Platform: All
Cpu: All |
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Hi,
it would be nice if v.in.mapgen could read directly from stdin when
'input=-'.
in "matlab" format mode this module can make a vector line map from a two
column "x y" data-stream, with new lines created whenever a "nan nan" is
in the stream. this is very useful for creating a line from points without
bothering with the grass vector ascii format. it might be worth getting
its own wrapper script as the 'v.in.mapgen -f' command is not obvious for
this generic task. v.in.points_as_lines or ...?
#848: v.in.mapgen: allow direct input from stdin
--------------------------+-------------------------------------------------
Reporter: hamish | Owner: grass-dev@lists.osgeo.org
Type: enhancement | Status: closed
Priority: normal | Milestone: 7.0.0
Component: Vector | Version: svn-trunk
Resolution: fixed | Keywords: v.in.mapgen
Platform: All | Cpu: All
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Changes (by hamish):
* status: new => closed
* resolution: => fixed
Comment:
I've just added a new ''v.in.lines'' wrapper shell script into the svn
addons repo.
after suitable testing and porting to python it should be added into the
main archive, as what it wraps (v.in.mapgen -f) is not at all obvious for
the task.
known bug/feature: if you specify a fs=[not whitespace] when there is
really whitespace as the fs it will still work. shrug.
intentional but subtle feature: if you pass 2D data to it and use the -z
flag to make a 3D vector line the z coordinate will be populated with 0s.