[GRASS-dev] 2D to 3D points

Hamish hamish_b at yahoo.com
Sun Mar 2 18:19:49 EST 2008

Benjamin wrote:
> > As far as I am aware, the term "extrusion" is pretty well defined
> > as the operation of extending an object in 3D space by "pulling
> > it out" with a predefined bearing and length. This would convert a
> > point to a line, a line to a plane and a polygon to, well, a
> > polygon with a volume, I guess.
> >
> > Personally, I'd be more in favour of wrapping a little script
> > "v.points.to.3d" around v.transform. For the beginners' sake.

> Well from that 'angle' I think that it makes sense not to use
> v.extrude. 
> v.points.to.3d seems like a fine choice.

'til now we have manged to keep the "."s in official modules to a max
of two. 

see previous discussion:

v.to.3dpoints or v.points.3d?

It doesn't match v.to.rast,v.to.rast3 naming, but I think v.to.points3
would make it too close to v.to.points which is another task
But it is not so far from what v.to.rast3 does, so maybe not so bad.

to get a nifty instant prefab wrapper script do:
  v.transform --script

Changing topic slightly, how about adding a -z flag to v.to.points for
3D lines? (no DB column involved)


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