// Count a nuber of polygons stored inside the vector of expolygons.
// Useful for allocating space for polygons when converting expolygons to polygons.
inline size_t number_polygons(const Surfaces &surfaces)
{
size_t n_polygons = 0;
for (Surfaces::const_iterator it = surfaces.begin(); it != surfaces.end(); ++ it)
n_polygons += it->expolygon.holes.size() + 1;
return n_polygons;
}
inline ExPolygons to_expolygons(const Surfaces &src)
{
ExPolygons expolygons;
expolygons.reserve(src.size());
for (Surfaces::const_iterator it = src.begin(); it != src.end(); ++it)
expolygons.push_back(it->expolygon);
return expolygons;
}
inline Polygons
to_polygons(const Surfaces &surfaces)
{
Slic3r::Polygons pp;
for (Surfaces::const_iterator s = surfaces.begin(); s != surfaces.end(); ++s)
append_to(pp, (Polygons)*s);
return pp;
}
// Append a vector of Surfaces at the end of another vector of polygons.
inline void polygons_append(Polygons &dst, const Surfaces &src)
{
dst.reserve(dst.size() + number_polygons(src));
for (Surfaces::const_iterator it = src.begin(); it != src.end(); ++ it) {
dst.push_back(it->expolygon.contour);
dst.insert(dst.end(), it->expolygon.holes.begin(), it->expolygon.holes.end());
}
}
void
SVG::draw_outline(const Surfaces &surfaces, std::string stroke_outer, std::string stroke_holes, coordf_t stroke_width)
{
for (Surfaces::const_iterator it = surfaces.begin(); it != surfaces.end(); ++ it)
draw_outline(*it, stroke_outer, stroke_holes, stroke_width);
}
void
SVG::draw(const Surfaces &surfaces, std::string fill, const float fill_opacity)
{
for (Surfaces::const_iterator it = surfaces.begin(); it != surfaces.end(); ++it)
this->draw(*it, fill, fill_opacity);
}
