CompuServe Thread

#New dxf3ds routine

4 messages in this thread
#537From: Larry MintonJul 22, 1991 9:33 AM
Well, I'm sure you've heard of the thousand points of light "thing". How about a thousand points in a dxf file brought into shaper by dxf3DS. Unless I did something utterly stupid, and wasted several hours of time in the process, there is no option in dxf3ds to connect vertices. How about having "Weld" also work for shaper files? Seems like essentially the same "thing". Thnx, LAM
#539From: Yost GroupJul 22, 1991 10:54 AM
I'm not sure exactly what you mean, Larry. The shaper can currently bring in polylines of up to 999 points. Are you referring to bringing in many discontinuous lines that have coincident vertices and converting them to one line? If so, please zip up an example dxf file and email it to me. Thanks,
#584From: Larry MintonJul 23, 1991 2:20 PM
The DXF file is of a script logo scanned in and converted to DXF by Coreldraw. Started off with about 5000 vertices. Obviously, going to have to figure out how to do -that- better. Anyhow, the problem was the many disontinuous lines with coincident vertices. I'll attempt to email it to you. First time, so anything may happen! BTW, did you get a prj file from Stephen Grisez 72730,3634 with the problem with the robot hand in the tutorial where the hand would rotate around the X axis, even though the Rotate X button was locked? I had the same problem, but I think I went through the tutorial a second time, and got it working right. Never did figure out what I did different. Just curious. LAM
#766From: Jeff RichardsonJul 29, 1991 2:49 AM
Larry, there is a method that you can use to recompose the individual line segments into a continuous segment. By importing the dxf file into AutoCAD, and selecting one of the line segments with the pedit command, AutoCAD will ask if you want to convert that line segment into a polyline. Once converted into a polyline, additional options will allow you to join the rest of the line segments in the drawing to the polyline (assuming the accuracy of the coincident points exported from Corel-draw is high enough). Simply select all lines in the drawing with the AutoCAD "window" selection, and AutoCAD will process all the segments that can be joined. Once the "joining" is completed, you should have one single polyline in the drawing. Create a new dxf file of this drawing from AutoCAD, and run that through dxf3ds and you should have a continous path to use. Keep in mind the 999 point path limitation…..if your polyline contains more than 999 vertices, there is "weeding" programs available in the ACAD forum, that will "weed" out unnecessary vertices, and reduce the number of points that construct the polyline. Some of the accuracy of the polyline will be lost of course, but the results are usually pretty good.