Re: Changing Plot3D to polygons?
- To: mathgroup at smc.vnet.net
- Subject: [mg5925] Re: [mg5850] Changing Plot3D to polygons?
- From: Lars Hohmuth <larsh>
- Date: Tue, 4 Feb 1997 00:03:57 -0500
- Organization: Wolfram Research Inc.
- Sender: owner-wri-mathgroup at wolfram.com
Robert Shanks wrote: > > I'm looking for a Mathematica comand or code to convert Plot3D or > ParametricPlot3D to polygons so I can save the form out as DXF. I can > save polygons to DXF fine, but just need a way to convert these other > formats. > > Thanks - Robert Shanks / Synthlab Did you look at the standard package Utilities`DXF`? This package was specifically written to allow the export of Mathematica Graphics as DXF files. The systax is WriteDXF["filname.dxf", graphic] If you wish to output polygons only, chose the PolygonsOnly option. Note: The package currently writes out only certain graphics primitives (Line, Point, Polygon, and Cuboid). Any style information is lost, as are axes, boxes, etc. This results in a DXF file equivalent to one created by the "entities only" option from AutoCAD. Cuboids and polygons with more than four sides are subdivided into triangular polygons. (This process creates a temporary file; be sure you have enough disk space to accommodate it. This will consume as much disk space as a Mathematica PostScript file for the same objects.) Even if this package doesn't do exactly what you want, it should be pretty easy to modify. Lars Hohmuth Wolfram Research