Vector to Raster to Vector

Some very brief answers!:

  I have been using GRASS for a few weeks now and I'm starting to become
comfortable with it but I am now in the process of converting different data
formats into GRASS. I have been looking through the manuals and tutorials
in order to find the best way to transfer the data into GRASS. I presently have
been trying to convert DXF format and Generic Multibeam Format (GMF) into

                         ^^^
                 Use v.in.dxf - this will only work on 2D dxf files (not 3D)
                 and does NOT bring attributes. Sorry! Don't know anything
                 about GMF (sounds straight out of Star Trek!).

GRASS.I also was faced with the task of converting raster data files in
GRASS into vector data files in GRASS and I haven't had much luck in finding

          ^^^^^^^^^
      Use r.poly or r.line, depending if you want to end up with line or
      polygon features. The GRASS vector files *MUST* have attributes to
      convert to raster.

anything to dothis. If anybody has information on the DXF, GMF to GRASS or
the conversion of
raster to vector with in GRASS, please write.

Thanks,
Dan Reilly
University of Rhode Island
Ocean Engineering

--
Malcolm D. Williamson - GIS Specialist E-mail: malcolm@cast.uark.edu
Center for Advanced Spatial Technologies Telephone: (501) 575-6159
Ozark Rm. 12 Fax: (501) 575-3846
University of Arkansas
Fayetteville, AR 72701