<HTML><BODY DEFANGED_STYLE="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">I also tried for some time to get 3d shapes from a CAD file into GRASS as 3d vectors. I used lots of different methods - extruded shapes (like v.extrude but in CAD), individual faces/surfaces, etc., and never had anything come out right in GRASS. I was using v.in.ogr to import Microstation .dgn files - which works fine for 2d vectors, and for 2 1/2d vectors -- contour lines with elevation -- but not for proper 3d objects. <DIV><BR class="khtml-block-placeholder"></DIV><DIV>Nick Cahill<DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR><DIV><DIV>On Feb 23, 2006, at 8:19 AM, Michael Barton wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"> <FONT face="Verdana, Helvetica, Arial"><SPAN DEFANGED_STYLE="font-size:12.0px">You can use v.extrude for buildings. I tried it and it is pretty slick.<BR> <BR> Michael<BR> __________________________________________<BR> Michael Barton, Professor of Anthropology<BR> School of Human Evolution and Social Change<BR> Arizona State University<BR> Tempe, AZ 85287-2402<BR> <BR> phone: 480-965-6213<BR> fax: 480-965-7671<BR> www: <A href="http://www.public.asu.edu/~cmbarton">http://www.public.asu.edu/~cmbarton</A> <BR> <BR> <BR> <BR> <HR align="CENTER" size="3" width="95%"><B>From: </B>Paul Shapley <<A href="mailto:p.shapley@gmail.com">p.shapley@gmail.com</A>><BR> <B>Date: </B>Wed, 22 Feb 2006 11:04:53 +0000<BR> <B>To: </B><<A href="mailto:GRASSLIST@baylor.edu">GRASSLIST@baylor.edu</A>><BR> <B>Subject: </B>[GRASSLIST:10514] Dxf and other 3d objects in NVIZ<BR> <BR> Hi All,<BR> <BR> I'm new to the list but not Grass which i use primarily on Mac OS X. Is there an alternative option to getting 3d objects into NVIZ. I have tried to obtain the v.in.dxf (OpenDWG Toolkit) but have failed.<BR> <BR> Has anyone had success with buildings or Windturbines in thier correct geographic positions. I have a '.dxf' instances i would like to import.<BR> <BR> Thanks,<BR> <BR> Paul Shapley<BR> <BR> </SPAN></FONT> </BLOCKQUOTE></DIV><BR></DIV></DIV></BODY></HTML>