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Ported diff_ex() to XS

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Alessandro Ranellucci 2013-07-16 20:29:15 +02:00
parent 898007fc36
commit 79db996696
3 changed files with 49 additions and 17 deletions
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37
xs/xsp/Clipper.xsp
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@ -74,4 +74,41 @@ offset2_ex(polygons, delta1, delta2, scale = 100000, joinType = ClipperLib::jtMi
OUTPUT:
RETVAL
ExPolygons
diff_ex(subject, clip, safety_offset = false)
Polygons subject
Polygons clip
bool safety_offset
CODE:
// read input
ClipperLib::Polygons* input_subject = new ClipperLib::Polygons();
ClipperLib::Polygons* input_clip = new ClipperLib::Polygons();
Slic3rPolygons_to_ClipperPolygons(subject, *input_subject);
Slic3rPolygons_to_ClipperPolygons(clip, *input_clip);
// perform safety offset
if (safety_offset) {
// SafetyOffset(*input_clip);
}
// init Clipper
ClipperLib::Clipper clipper;
clipper.Clear();
// add polygons
clipper.AddPolygons(*input_subject, ClipperLib::ptSubject);
delete input_subject;
clipper.AddPolygons(*input_clip, ClipperLib::ptClip);
delete input_clip;
// perform operation
ClipperLib::PolyTree* polytree = new ClipperLib::PolyTree();
clipper.Execute(ClipperLib::ctDifference, *polytree, ClipperLib::pftNonZero, ClipperLib::pftNonZero);
// convert into ExPolygons
PolyTreeToExPolygons(*polytree, RETVAL);
delete polytree;
OUTPUT:
RETVAL
%}