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Bugfix of bottom bridges. If close regions shall be closed by bridges,

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these regions are grown to anchor the bridge lines to the bottom surface.
The grown regions may overlap. In that case the regions are now merged
before the bridging direction is calculated for the merged region.
This commit is contained in:
bubnikv 2016-09-30 15:23:18 +02:00
parent b5e24d3527
commit 3a81e6bee4
12 changed files with 265 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

41
xs/src/libslic3r/ExPolygon.cpp
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@ -4,6 +4,7 @@
#include "Polygon.hpp"
#include "Line.hpp"
#include "ClipperUtils.hpp"
#include "SVG.hpp"
#include "polypartition.h"
#include "poly2tri/poly2tri.h"
#include <algorithm>
@ -34,6 +35,17 @@ ExPolygon::operator Polygons() const
return polygons;
}
ExPolygon::operator Polylines() const
{
Polylines polylines;
polylines.reserve(this->holes.size() + 1);
polylines.push_back((Polyline)this->contour);
for (Polygons::const_iterator it = this->holes.begin(); it != this->holes.end(); ++it) {
polylines.push_back((Polyline)*it);
}
return polylines;
}
void
ExPolygon::scale(double factor)
{
@ -104,6 +116,25 @@ ExPolygon::contains(const Polyline &polyline) const
return pl_out.empty();
}
bool
ExPolygon::contains(const Polylines &polylines) const
{
#if 0
BoundingBox bbox = get_extents(polylines);
bbox.merge(get_extents(*this));
SVG svg("out\\ExPolygon_contains.svg", bbox);
svg.draw(*this);
svg.draw_outline(*this);
svg.draw(polylines, "blue");
#endif
Polylines pl_out;
diff(polylines, *this, &pl_out);
#if 0
svg.draw(pl_out, "red");
#endif
return pl_out.empty();
}
bool
ExPolygon::contains(const Point &point) const
{
@ -131,6 +162,16 @@ ExPolygon::has_boundary_point(const Point &point) const
return false;
}
bool
ExPolygon::overlaps(const ExPolygon &other) const
{
Polylines pl_out;
intersection((Polylines)other, *this, &pl_out);
if (! pl_out.empty())
return true;
return ! other.contour.points.empty() && this->contains_b(other.contour.points.front());
}
void
ExPolygon::simplify_p(double tolerance, Polygons* polygons) const
{