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Remove zero area polygons

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Val Erastov 2015-11-06 11:39:55 -08:00
parent f02edbba70
commit f3e8328b80
1 changed files with 3 additions and 1 deletions
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web/app/workbench.js
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@ -409,7 +409,9 @@ TCAD.craft._triangulateCSG = function(polygons) {
var a = refs[i][0];
var b = refs[i][1];
var c = refs[i][2];
if (points[b].pos.minus(points[a].pos).cross(points[c].pos.minus(points[a].pos)).length() === 0) {
//magnitude of cross product is the area of parallelogram
var area = points[b].pos.minus(points[a].pos).cross(points[c].pos.minus(points[a].pos)).length() / 2.0;
if (area < TCAD.TOLERANCE) {
continue;
}
var csgPoly = new CSG.Polygon([points[a], points[b], points[c]], poly.shared, poly.plane);