PrusaSlicer-NonPlainar/src/libslic3r/SLA/ConcaveHull.hpp
tamasmeszaros c22423a219 Merge branch 'tm_openvdb_integration' into lm_tm_hollowing
* Refactor file names in SLA dir
2019-11-11 12:55:22 +01:00

54 lines
1.5 KiB
C++

#ifndef SLA_CONCAVEHULL_HPP
#define SLA_CONCAVEHULL_HPP
#include <libslic3r/ExPolygon.hpp>
namespace Slic3r {
namespace sla {
inline Polygons get_contours(const ExPolygons &poly)
{
Polygons ret; ret.reserve(poly.size());
for (const ExPolygon &p : poly) ret.emplace_back(p.contour);
return ret;
}
using ThrowOnCancel = std::function<void()>;
/// A fake concave hull that is constructed by connecting separate shapes
/// with explicit bridges. Bridges are generated from each shape's centroid
/// to the center of the "scene" which is the centroid calculated from the shape
/// centroids (a star is created...)
class ConcaveHull {
Polygons m_polys;
static Point centroid(const Points& pp);
static inline Point centroid(const Polygon &poly) { return poly.centroid(); }
Points calculate_centroids() const;
void merge_polygons();
void add_connector_rectangles(const Points &centroids,
coord_t max_dist,
ThrowOnCancel thr);
public:
ConcaveHull(const ExPolygons& polys, double merge_dist, ThrowOnCancel thr)
: ConcaveHull{to_polygons(polys), merge_dist, thr} {}
ConcaveHull(const Polygons& polys, double mergedist, ThrowOnCancel thr);
const Polygons & polygons() const { return m_polys; }
ExPolygons to_expolygons() const;
};
ExPolygons offset_waffle_style_ex(const ConcaveHull &ccvhull, coord_t delta);
Polygons offset_waffle_style(const ConcaveHull &polys, coord_t delta);
}} // namespace Slic3r::sla
#endif // CONCAVEHULL_HPP