Lee Willis (lwillis++at++inreach.com)
Tue, 28 Apr 1998 12:44:54 -0700
1) Define the contours as edges in the TIN.
2) Tesselate the TIN
3) Interpolate the TIN back into a DEM.
There are a number of freely distributable TIN libraries on the net. See
http://www.cs.cmu.edu/~garland/multires/software.html
for some of them. (Not everything listed there is suitable)
(Any good vector GIS should also be able to do this)
------------------------------
Lee Willis Virtual Landscape Dermatologist
lwillis++at++terrex.com TERREX
----------
> From: Ong Tze Lin <tzelin++at++nuno.singapore.sgi.com>
> To: info-performer++at++sgi.com
> Subject: Extracting terrain data from dxf
> Date: Tuesday, April 28, 1998 8:34 AM
>
> Hi all,
>
> I'm wondering how to get Dted or other terrain info
> out of a dxf file containing contour lines.
>
> Is there any software out there that will do that?
> Right now I'm faced with having to translate
> the data into inventor, and sampling the points
> in the data field at appropriate intervals to construct
> my own ded file.
>
> Also I'm looking into shading the contour intervals
> and using the MultiGen utility image2ded to get
> a terrain mesh.
>
> But if there are any tools out there which will make
> my life easier, I'll use them!
>
> Thanks,
>
> Cheers,
> tzelin
>
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This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:57:19 PDT