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Fixed compilation on non MS systems

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This commit is contained in:
Vojtech Bubnik 2021-10-14 09:31:53 +02:00
parent 7ff76d0768
commit 0222533273
1 changed files with 40 additions and 39 deletions
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79
src/libslic3r/ClipperUtils.cpp
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@ -156,6 +156,45 @@ bool has_duplicate_points(const ClipperLib::PolyTree &polytree)
} }
#endif #endif
// Offset CCW contours outside, CW contours (holes) inside.
// Don't calculate union of the output paths.
template<typename PathsProvider, ClipperLib::EndType endType = ClipperLib::etClosedPolygon>
static ClipperLib::Paths raw_offset(PathsProvider &&paths, float offset, ClipperLib::JoinType joinType, double miterLimit)
{
ClipperLib::ClipperOffset co;
ClipperLib::Paths out;
out.reserve(paths.size());
ClipperLib::Paths out_this;
if (joinType == jtRound)
co.ArcTolerance = miterLimit;
else
co.MiterLimit = miterLimit;
co.ShortestEdgeLength = double(std::abs(offset * CLIPPER_OFFSET_SHORTEST_EDGE_FACTOR));
for (const ClipperLib::Path &path : paths) {
co.Clear();
// Execute reorients the contours so that the outer most contour has a positive area. Thus the output
// contours will be CCW oriented even though the input paths are CW oriented.
// Offset is applied after contour reorientation, thus the signum of the offset value is reversed.
co.AddPath(path, joinType, endType);
bool ccw = endType == ClipperLib::etClosedPolygon ? ClipperLib::Orientation(path) : true;
co.Execute(out_this, ccw ? offset : - offset);
if (! ccw) {
// Reverse the resulting contours.
for (ClipperLib::Path &path : out_this)
std::reverse(path.begin(), path.end());
}
append(out, std::move(out_this));
}
return out;
}
// Offset outside by 10um, one by one.
template<typename PathsProvider>
static ClipperLib::Paths safety_offset(PathsProvider &&paths)
{
return raw_offset(std::forward<PathsProvider>(paths), ClipperSafetyOffset, DefaultJoinType, DefaultMiterLimit);
}
template<class TResult, class TSubj, class TClip> template<class TResult, class TSubj, class TClip>
TResult clipper_do( TResult clipper_do(
const ClipperLib::ClipType clipType, const ClipperLib::ClipType clipType,
@ -206,38 +245,6 @@ ExPolygons ClipperPaths_to_Slic3rExPolygons(const ClipperLib::Paths &input, bool
return PolyTreeToExPolygons(clipper_union<ClipperLib::PolyTree>(input, do_union ? ClipperLib::pftNonZero : ClipperLib::pftEvenOdd)); return PolyTreeToExPolygons(clipper_union<ClipperLib::PolyTree>(input, do_union ? ClipperLib::pftNonZero : ClipperLib::pftEvenOdd));
} }
// Offset CCW contours outside, CW contours (holes) inside.
// Don't calculate union of the output paths.
template<typename PathsProvider, ClipperLib::EndType endType = ClipperLib::etClosedPolygon>
static ClipperLib::Paths raw_offset(PathsProvider &&paths, float offset, ClipperLib::JoinType joinType, double miterLimit)
{
ClipperLib::ClipperOffset co;
ClipperLib::Paths out;
out.reserve(paths.size());
ClipperLib::Paths out_this;
if (joinType == jtRound)
co.ArcTolerance = miterLimit;
else
co.MiterLimit = miterLimit;
co.ShortestEdgeLength = double(std::abs(offset * CLIPPER_OFFSET_SHORTEST_EDGE_FACTOR));
for (const ClipperLib::Path &path : paths) {
co.Clear();
// Execute reorients the contours so that the outer most contour has a positive area. Thus the output
// contours will be CCW oriented even though the input paths are CW oriented.
// Offset is applied after contour reorientation, thus the signum of the offset value is reversed.
co.AddPath(path, joinType, endType);
bool ccw = endType == ClipperLib::etClosedPolygon ? ClipperLib::Orientation(path) : true;
co.Execute(out_this, ccw ? offset : - offset);
if (! ccw) {
// Reverse the resulting contours.
for (ClipperLib::Path &path : out_this)
std::reverse(path.begin(), path.end());
}
append(out, std::move(out_this));
}
return out;
}
template<typename PathsProvider, ClipperLib::EndType endType = ClipperLib::etClosedPolygon> template<typename PathsProvider, ClipperLib::EndType endType = ClipperLib::etClosedPolygon>
static ClipperLib::Paths raw_offset_polyline(PathsProvider &&paths, float offset, ClipperLib::JoinType joinType, double miterLimit) static ClipperLib::Paths raw_offset_polyline(PathsProvider &&paths, float offset, ClipperLib::JoinType joinType, double miterLimit)
{ {
@ -245,13 +252,6 @@ static ClipperLib::Paths raw_offset_polyline(PathsProvider &&paths, float offset
return raw_offset<PathsProvider, ClipperLib::etOpenButt>(std::forward<PathsProvider>(paths), offset, joinType, miterLimit); return raw_offset<PathsProvider, ClipperLib::etOpenButt>(std::forward<PathsProvider>(paths), offset, joinType, miterLimit);
} }
// Offset outside by 10um, one by one.
template<typename PathsProvider>
static ClipperLib::Paths safety_offset(PathsProvider &&paths)
{
return raw_offset(std::forward<PathsProvider>(paths), ClipperSafetyOffset, DefaultJoinType, DefaultMiterLimit);
}
template<class TResult, typename PathsProvider> template<class TResult, typename PathsProvider>
static TResult expand_paths(PathsProvider &&paths, float offset, ClipperLib::JoinType joinType, double miterLimit) static TResult expand_paths(PathsProvider &&paths, float offset, ClipperLib::JoinType joinType, double miterLimit)
{ {
@ -259,6 +259,7 @@ static TResult expand_paths(PathsProvider &&paths, float offset, ClipperLib::Joi
return clipper_union<TResult>(raw_offset(std::forward<PathsProvider>(paths), offset, joinType, miterLimit)); return clipper_union<TResult>(raw_offset(std::forward<PathsProvider>(paths), offset, joinType, miterLimit));
} }
// used by shrink_paths()
template<class Container> static void remove_outermost_polygon(Container & solution); template<class Container> static void remove_outermost_polygon(Container & solution);
template<> static void remove_outermost_polygon<ClipperLib::Paths>(ClipperLib::Paths &solution) template<> static void remove_outermost_polygon<ClipperLib::Paths>(ClipperLib::Paths &solution)
{ if (! solution.empty()) solution.erase(solution.begin()); } { if (! solution.empty()) solution.erase(solution.begin()); }