KRBeckman Posted February 8, 2010 Share Posted February 8, 2010 Hey All, I'm trying to write a program that will allow me to draw a polyline around a complex shape and then take the coordinates from that polyline and use them to draw 3d-faces to fill the interior portion of that polyline, but I really don't know where to start. Any ideas? Not looking for someone to write the program, just a pointer on how this might be done. Thanks. Quote Link to comment Share on other sites More sharing options...
David Bethel Posted February 8, 2010 Share Posted February 8, 2010 That would an extremely difficult one. I usually try to brake the outline into 4 sided segments that then can be fed to EDGESURF. The human mind sees the overall picture a lot better than computer algorithms. Good Luck -David Quote Link to comment Share on other sites More sharing options...
KRBeckman Posted February 8, 2010 Author Share Posted February 8, 2010 Yeah, kinda what I was thinking... I looked at the lisp you wrote here: http://www.cadtutor.net/forum/showthread.php?t=43411 But I was hoping for something that didn't have a line going through the middle, but I'm having a hard time wrapping my head around how to get it to work. Quote Link to comment Share on other sites More sharing options...
David Bethel Posted February 8, 2010 Share Posted February 8, 2010 Well the line in the center can be taken care. Can you post a sample of the PLINE? I've done some pretty weird shapes. Especially 2D thingies! -David Quote Link to comment Share on other sites More sharing options...
KRBeckman Posted February 8, 2010 Author Share Posted February 8, 2010 Here ya go... Most of what I will use this for is just the tops of office desks (I work for a large Office Furniture Manufacturer). So it'll all be 2-d polylines. PLINE EXAMPLE.dwg Quote Link to comment Share on other sites More sharing options...
David Bethel Posted February 8, 2010 Share Posted February 8, 2010 That is exactly what pol-fill.lsp can handle I do see a bug with pol-fill To fix it: _Convertpoly _Heavy Select your line (load "POL-FILL") Command: POL-FILL Select Y axis boundry Pick a point where both end lines are vertical Pick the LINE Border Do you have an editor that can change all of the faces edges to invisible ( change dxf group 70 to 15 ) I'll have to dig into it and find why it isn't converting LWPOLYLINEs into HEAVY POLYLINEs automatically. It should be doing it. -David Quote Link to comment Share on other sites More sharing options...
KRBeckman Posted February 8, 2010 Author Share Posted February 8, 2010 Yeah, I can hide the edges, but my boss won't let me do that... we have over 3/4mil symbols and if we started doing this the extra entities would greatly increase the amount of disk space we're using up. Quote Link to comment Share on other sites More sharing options...
David Bethel Posted February 8, 2010 Share Posted February 8, 2010 Each 3dface is 100 bytes in R12. Each side could be projected to to other but it would take good bit of effort. -David Quote Link to comment Share on other sites More sharing options...
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