Hi ALL:
Want to know if this is possible.
Have a 2D gray scale image.  The gray value is the elevation or Z value.  Can we convert it into a 3D autoCad file like dxf or equivalent.  
i.e.  Want to convert a topographic image into a 3D autocad data file.

Thanks
CS

"C Shen" wrote in message <iiusej$rif$1@fred.mathworks.com>...
> Hi ALL:
> Want to know if this is possible.
> Have a 2D gray scale image.  The gray value is the elevation or Z value.  Can we convert it into a 3D autoCad file like dxf or equivalent.  
> i.e.  Want to convert a topographic image into a 3D autocad data file.
> 
> Thanks
> CS

This is probably a good place to start:
http://www.mathworks.com/matlabcentral/fileexchange/?term=autocad

If necessary you could reverse engineer some of these files to write the information you have to dxf etc. file.