| Re: Raster DEM to DXF Contours [message #14900] |
Thu, 01 April 1999 00:00 |
dar
Messages: 1
Registered: April 1999
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Junior Member |
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On Wed, 31 Mar 1999 08:33:01 +0100,
<asowter@synopticsga.freeserve.co.uk> wrote:
> I have a raster DEM (16-bit signed) and need to generate vector contours in
> DXF format. Any cheap methods of doing this (i.e. I don't want to buy a
> full ArcView or Info license just for this if I can possibly avoid it)?
>
You can do this in Manifold: import the DEM (USGS domestic DEM or
gtopo30 international DEM), use the contour solver to create contours,
select the contours and save them as a DXF. See www.manifold.net
Cheers,
Dimitri
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| Re: Raster DEM to DXF Contours [message #14919 is a reply to message #14900] |
Wed, 31 March 1999 00:00  |
Med Bennett
Messages: 109
Registered: April 1997
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Senior Member |
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asowter@synopticsga.freeserve.co.uk wrote:
> I have a raster DEM (16-bit signed) and need to generate vector contours in
> DXF format. Any cheap methods of doing this (i.e. I don't want to buy a
> full ArcView or Info license just for this if I can possibly avoid it)?
>
> I'm using ENVI and IDL right now and can generate raster contours to my
> heart's content but I'm told that it doesn't support vector output of this
> kind.
>
> Many Thanks
>
> Andy
Do you have access to any flavor of AutoCAD? If so, I think you could save
your contours to a postscript file, import them into AutoCAD, scale and
translate them as needed, and then DXFOUT. Let us know what you come up with -
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