mirror of
https://github.com/SoftFever/OrcaSlicer.git
synced 2025-07-12 01:07:57 -06:00
9fbba855ef
1) Removed the already commented-out scaling / unscaling when doing "safe offsetting" 2) Removed some of the "safe offsetting" at calls where it never was used. 3) Reworked Clipper & ClipperUtils to pass Polygons / ExPolygons / Surfaces as input parameters without conversion to ClipperLib::Paths. This should save a lot of memory allocation and copying. 4) Reworked conversions from ClipperLib::Paths & PolyTree to Polygons / ExPolygons to use the move operator to avoid many unnecessary allocations. 5) Reworked some "union with safe ofsetting" to "offset_ex", which should be cheaper.
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
#include "../ClipperUtils.hpp"
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#include "../ExPolygon.hpp"
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#include "../Surface.hpp"
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#include "FillConcentric.hpp"
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namespace Slic3r {
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void FillConcentric::_fill_surface_single(
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const FillParams ¶ms,
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unsigned int thickness_layers,
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const std::pair<float, Point> &direction,
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ExPolygon expolygon,
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Polylines &polylines_out)
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{
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// no rotation is supported for this infill pattern
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BoundingBox bounding_box = expolygon.contour.bounding_box();
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coord_t min_spacing = scale_(this->spacing);
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coord_t distance = coord_t(min_spacing / params.density);
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if (params.density > 0.9999f && !params.dont_adjust) {
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distance = this->_adjust_solid_spacing(bounding_box.size()(0), distance);
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this->spacing = unscale<double>(distance);
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}
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Polygons loops = to_polygons(expolygon);
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ExPolygons last { std::move(expolygon) };
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while (! last.empty()) {
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last = offset2_ex(last, -(distance + min_spacing/2), +min_spacing/2);
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append(loops, to_polygons(last));
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}
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// generate paths from the outermost to the innermost, to avoid
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// adhesion problems of the first central tiny loops
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loops = union_pt_chained_outside_in(loops);
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// split paths using a nearest neighbor search
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size_t iPathFirst = polylines_out.size();
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Point last_pos(0, 0);
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for (const Polygon &loop : loops) {
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polylines_out.emplace_back(loop.split_at_index(last_pos.nearest_point_index(loop.points)));
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last_pos = polylines_out.back().last_point();
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}
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// clip the paths to prevent the extruder from getting exactly on the first point of the loop
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// Keep valid paths only.
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size_t j = iPathFirst;
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for (size_t i = iPathFirst; i < polylines_out.size(); ++ i) {
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polylines_out[i].clip_end(this->loop_clipping);
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if (polylines_out[i].is_valid()) {
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if (j < i)
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polylines_out[j] = std::move(polylines_out[i]);
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++ j;
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}
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}
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if (j < polylines_out.size())
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polylines_out.erase(polylines_out.begin() + j, polylines_out.end());
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//TODO: return ExtrusionLoop objects to get better chained paths,
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// otherwise the outermost loop starts at the closest point to (0, 0).
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// We want the loops to be split inside the G-code generator to get optimum path planning.
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}
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} // namespace Slic3r
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