Hi Tolga,
There's a list of supported file formats on the VisAD web page.
It includes ASCII files but no CAD formats that I am aware of
(it does include some GIS formats, notably Shape files via
Unidata's Metapps software). VisAD does support structured
and unstructured grids (the unstructured grids currently have
to be subdivided into tetrahedra). VisAD supports a wide
variety of rendering and interaction techniques.
Cheers,
Bill
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI 53706
hibbard@xxxxxxxxxxxxxxxxx 608-263-4427 fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html