[GRASS-user] Re: [GRASS-dev] 3D DXF output: howto?

[Markus Neteler]

Ah, now I got it... So, alternatively you can do:
with
  v.to.db option=coor ...
you could upload the x and y values to the attribute table,
then re-create a map with
  v.in.db ...
 
Markus

Benjamin Ducke wrote on 11/16/2006 11:48 AM:
> OK, v.drape worked for me, though I find it a little annoying
> that I have to first convert the elevation attribute to a
> raster, than use that to grab 3D coordinates off it.
>
> I was hoping there might be a more elegant way to just copy
> the elevation attribute into the Z coordinate and create
> and thus convert a 3D points map to 3D directly.
>
> I can confirm that 3D dxf export works fine, at least for points.
>
> Thanks a lot for the hint,
>
> Benjamin
>
> Markus Neteler wrote:
>> Hi Benjamin,
>>
>> (I have taken out grass-dev to avoid too much cross-posting)
>>
>> Benjamin Ducke wrote on 11/16/2006 09:37 AM:
>>
>>> Hi everyone,
>>>
>>> I am currently trying to get some 3D points out of GRASS and into a
>>> 3D modeller (blender.org) fur further processing.
>>>
>>> Two questions arise:
>>>
>>> 1. My GRASS vector points are 2D + elevation attribute. Is it possible
>>> to map the elevation attribute to a Z coordinate and create a 3D map?
>>
>>
>> v.drape will do that for you.
>>
>>
>>> 2. Is it possible to output 3D vector points as 3D DXF?
>>
>> v.out.dxf seems to set 3D dxf vertices. Doesn't it work?
>>
>> Markus
>>
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>