[OpenSCAD] PolySet has nonplanar faces --> ERROR: CGAL

DarioPellegrini pellegrini.dario at gmail.com
Thu Oct 25 10:48:59 EDT 2018


I am using v20180923. The minimal example below works with f5 but produces
the following error with f6. Thank you for your attention!

PolySet has nonplanar faces. Attempting alternate construction
ERROR: CGAL error in CGALUtils::applyBinaryOperator union: CGAL ERROR:
assertion violation! Expr: itl != it->second.end() File:
/usr/include/CGAL/Nef_3/SNC_external_structure.h Line: 1153

use <list-comprehension-demos/sweep.scad>points = [  [-1,-1,0],  [ 1, 1,0], 
[-1, 1,0],  [ 1,-1,0]];shape = [    [-1,-1],    [-1, 1],    [ 1, 1],    [
1,-1]];path_transforms = construct_transform_path(5*points);union() { 
sweep(shape, path_transforms);  cube(5, center=true);}



--
Sent from: http://forum.openscad.org/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openscad.org/pipermail/discuss_lists.openscad.org/attachments/20181025/ca103331/attachment.html>


More information about the Discuss mailing list