[GRASS-user] 3D TIN?

[sm399 at cam.ac.uk]

Dear Carlos and all,

I tried the export via shapefile too, as I do actually have Autocad Map. 
The problem remains the same. For some reason (or actually, probably the 
same reason highlighted my Markus in previous correspondance) the v.out 
even in this case does not transfer 3D info.

I really need to work in 3D to edit these TINS and create a 3D geometry to 
then import in GRASS and Paraview. Can anybody assist? I am basically 
trying to create 3D irregular volumes from points to represent 
archaeological features.

Yours,
stefania

--On 08 July 2007 11:28 +0100 "Carlos \"Guâno\" Grohmann" 
<carlos.grohmann at gmail.com> wrote:

> Stefania,
> do you really need to work with dxf files?  Are you using AutoCAD or
> other CAD software? AutoCAD MAP can import shapefiles.
> if you really need dxf, you can try to export as shapefile and then
> convert it.
> there are some converters around, like:
>
> http://www.globalmapper.com/
> http://www.guthcad.com/arcv2cad.htm
> http://www.mass.gov/mgis/dxf.htm
>
> these are Windows programs, though.
>
> good luck
>
> Carlos
>
> On 7/8/07, sm399 at cam.ac.uk <sm399 at cam.ac.uk> wrote:
>> Thank you Markus for the clarification.
>>
>> Is there anybody out there that could assist the support for 3D face? I
>> cannot program...
>>
>> stefania
>>
>> --On 07 July 2007 10:57 -0700 Markus Neteler <neteler at itc.it> wrote:
>>
>> >
>> >
>> > Stefania Merlo wrote:
>> >>
>> >> Dear GRASS users,
>> >>
>> >> I have a question about exporting TINs to dxf. I have successfully
>> >> managed  to perform the export and opened the TIN files created with
>> >> v.delaunay in  CAD. Problem is, the z value of the TIN points is 0 and
>> >> my TIN is flat (not
>> >> what I wanted to achieve). Am I doing something wrong or is this what
>> >> should happen? Is there a command that would allow the export of 3D
>> >> TINs?  Is this an export problem only or is the command v.delaunay not
>> >> producing a
>> >> 3D file?
>> >>
>> >> Hope my problem is clearly stated. Any suggestions on how to create
>> >> and export a 3D TIN for further editing in software external to GRASS
>> >> is welcome!
>> >>
>> >> Yours
>> >>
>> >> stefania merlo
>> >>
>> >> University of Cambridge
>> >> UK
>> >>
>> >
>> > Hi Stefania,
>> >
>> > I checked v.out.dxf and found that no 3DFACE support is there. This
>> > needs to be added; I think it would be the inverse of
>> > vector/v.in.dxf/add_3dface.c
>> >
>> > Markus
>> > --
>> > View this message in context:
>> > http://www.nabble.com/3D-TIN--tf4040787.html#a11480693 Sent from the
>> > Grass - Users mailing list archive at Nabble.com.
>> >
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>>
>>
>>
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>
>
> --
> +-----------------------------------------------------------+
>               Carlos Henrique Grohmann - Guano
>   Visiting Researcher at Kingston University London - UK
>   Geologist M.Sc  - Doctorate Student at IGc-USP - Brazil
> Linux User #89721  - carlos dot grohmann at gmail dot com
> +-----------------------------------------------------------+
> _________________
> "Good morning, doctors. I have taken the liberty of removing Windows
> 95 from my hard drive."
> --The winning entry in a "What were HAL's first words" contest judged
> by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
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