Re: Extracting terrain data from dxf

New Message Reply Date view Thread view Subject view Author view

Alejandro Saez (cano++at++silicon.cl)
Tue, 28 Apr 1998 13:15:25 -0400

On Apr 28, 8:34am, Ong Tze Lin wrote:
> Subject: Extracting terrain data from dxf
> 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
>
> =======================================================================
> List Archives, FAQ, FTP: http://www.sgi.com/Technology/Performer/
> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com
>
>-- End of excerpt from Ong Tze Lin

Both tasks can be done with an GIS software. Some GIS (arc-info being one of
them, I think, I'm not sure) can read dxf vector data and write DFAD culture
data. Also, most vector/raster GISs can generate an image DEM file from contour
maps (TNT mips is one of them, I've tried it). The problem is that by
generating an image file you loose geographic location information.

        Hope this helps

-- 
------------------------------------------------------------------------
Alejandro Saez
Software Engineer
Silicon Chile S.A.
                                        Avda. Andres Bello 2777, Of. 602
E-mail: asaez++at++silicon.cl              	Providencia
Phone:  +56 (2) 203 3371 Ext. 105       Santiago
Fax:    +56 (2) 203 3370                Chile
------------------------------------------------------------------------
=======================================================================
List Archives, FAQ, FTP:  http://www.sgi.com/Technology/Performer/
            Submissions:  info-performer++at++sgi.com
        Admin. requests:  info-performer-request++at++sgi.com

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:57:18 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.