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Ported offset() and offset2()

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This commit is contained in:
Alessandro Ranellucci 2013-07-17 00:48:29 +02:00
parent bf8c799685
commit c7b6818ccf
15 changed files with 152 additions and 81 deletions
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107
xs/src/ClipperUtils.cpp
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@ -2,15 +2,6 @@
namespace Slic3r {
void
ClipperPolygon_to_Slic3rPolygon(ClipperLib::Polygon &input, Slic3r::Polygon &output)
{
output.points.clear();
for (ClipperLib::Polygon::iterator pit = input.begin(); pit != input.end(); ++pit) {
output.points.push_back(Slic3r::Point( (*pit).X, (*pit).Y ));
}
}
//-----------------------------------------------------------
// legacy code from Clipper documentation
void AddOuterPolyNodeToExPolygons(ClipperLib::PolyNode& polynode, Slic3r::ExPolygons& expolygons)
@ -37,21 +28,21 @@ void PolyTreeToExPolygons(ClipperLib::PolyTree& polytree, Slic3r::ExPolygons& ex
//-----------------------------------------------------------
void
Slic3rPolygon_to_ClipperPolygon(Slic3r::Polygon &input, ClipperLib::Polygon &output)
ClipperPolygon_to_Slic3rPolygon(ClipperLib::Polygon &input, Slic3r::Polygon &output)
{
output.clear();
for (Slic3r::Points::iterator pit = input.points.begin(); pit != input.points.end(); ++pit) {
output.push_back(ClipperLib::IntPoint( (*pit).x, (*pit).y ));
output.points.clear();
for (ClipperLib::Polygon::iterator pit = input.begin(); pit != input.end(); ++pit) {
output.points.push_back(Slic3r::Point( (*pit).X, (*pit).Y ));
}
}
void
Slic3rPolygons_to_ClipperPolygons(Slic3r::Polygons &input, ClipperLib::Polygons &output)
ClipperPolygons_to_Slic3rPolygons(ClipperLib::Polygons &input, Slic3r::Polygons &output)
{
output.clear();
for (Slic3r::Polygons::iterator it = input.begin(); it != input.end(); ++it) {
ClipperLib::Polygon p;
Slic3rPolygon_to_ClipperPolygon(*it, p);
for (ClipperLib::Polygons::iterator it = input.begin(); it != input.end(); ++it) {
Slic3r::Polygon p;
ClipperPolygon_to_Slic3rPolygon(*it, p);
output.push_back(p);
}
}
@ -75,6 +66,26 @@ ClipperPolygons_to_Slic3rExPolygons(ClipperLib::Polygons &input, Slic3r::ExPolyg
delete polytree;
}
void
Slic3rPolygon_to_ClipperPolygon(Slic3r::Polygon &input, ClipperLib::Polygon &output)
{
output.clear();
for (Slic3r::Points::iterator pit = input.points.begin(); pit != input.points.end(); ++pit) {
output.push_back(ClipperLib::IntPoint( (*pit).x, (*pit).y ));
}
}
void
Slic3rPolygons_to_ClipperPolygons(Slic3r::Polygons &input, ClipperLib::Polygons &output)
{
output.clear();
for (Slic3r::Polygons::iterator it = input.begin(); it != input.end(); ++it) {
ClipperLib::Polygon p;
Slic3rPolygon_to_ClipperPolygon(*it, p);
output.push_back(p);
}
}
void
scaleClipperPolygons(ClipperLib::Polygons &polygons, const double scale)
{
@ -87,7 +98,7 @@ scaleClipperPolygons(ClipperLib::Polygons &polygons, const double scale)
}
void
offset_ex(Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float delta,
offset(Slic3r::Polygons &polygons, ClipperLib::Polygons &retval, const float delta,
double scale, ClipperLib::JoinType joinType, double miterLimit)
{
// read input
@ -98,12 +109,33 @@ offset_ex(Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float de
scaleClipperPolygons(*input, scale);
// perform offset
ClipperLib::Polygons* output = new ClipperLib::Polygons();
ClipperLib::OffsetPolygons(*input, *output, (delta*scale), joinType, miterLimit);
ClipperLib::OffsetPolygons(*input, retval, (delta*scale), joinType, miterLimit);
delete input;
// unscale output
scaleClipperPolygons(*output, 1/scale);
scaleClipperPolygons(retval, 1/scale);
}
void
offset(Slic3r::Polygons &polygons, Slic3r::Polygons &retval, const float delta,
double scale, ClipperLib::JoinType joinType, double miterLimit)
{
// perform offset
ClipperLib::Polygons* output = new ClipperLib::Polygons();
offset(polygons, *output, delta, scale, joinType, miterLimit);
// convert into ExPolygons
ClipperPolygons_to_Slic3rPolygons(*output, retval);
delete output;
}
void
offset_ex(Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float delta,
double scale, ClipperLib::JoinType joinType, double miterLimit)
{
// perform offset
ClipperLib::Polygons* output = new ClipperLib::Polygons();
offset(polygons, *output, delta, scale, joinType, miterLimit);
// convert into ExPolygons
ClipperPolygons_to_Slic3rExPolygons(*output, retval);
@ -111,7 +143,7 @@ offset_ex(Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float de
}
void
offset2_ex(Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float delta1,
offset2(Slic3r::Polygons &polygons, ClipperLib::Polygons &retval, const float delta1,
const float delta2, double scale, ClipperLib::JoinType joinType, double miterLimit)
{
// read input
@ -127,16 +159,37 @@ offset2_ex(Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float d
delete input;
// perform second offset
ClipperLib::Polygons* output2 = new ClipperLib::Polygons();
ClipperLib::OffsetPolygons(*output1, *output2, (delta2*scale), joinType, miterLimit);
ClipperLib::OffsetPolygons(*output1, retval, (delta2*scale), joinType, miterLimit);
delete output1;
// unscale output
scaleClipperPolygons(*output2, 1/scale);
scaleClipperPolygons(retval, 1/scale);
}
void
offset2(Slic3r::Polygons &polygons, Slic3r::Polygons &retval, const float delta1,
const float delta2, double scale, ClipperLib::JoinType joinType, double miterLimit)
{
// perform offset
ClipperLib::Polygons* output = new ClipperLib::Polygons();
offset2(polygons, *output, delta1, delta2, scale, joinType, miterLimit);
// convert into ExPolygons
ClipperPolygons_to_Slic3rExPolygons(*output2, retval);
delete output2;
ClipperPolygons_to_Slic3rPolygons(*output, retval);
delete output;
}
void
offset2_ex(Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float delta1,
const float delta2, double scale, ClipperLib::JoinType joinType, double miterLimit)
{
// perform offset
ClipperLib::Polygons* output = new ClipperLib::Polygons();
offset2(polygons, *output, delta1, delta2, scale, joinType, miterLimit);
// convert into ExPolygons
ClipperPolygons_to_Slic3rExPolygons(*output, retval);
delete output;
}
inline void _clipper_ex(ClipperLib::ClipType clipType, Slic3r::Polygons &subject,