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[partialy] Support for islands

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LAPTOP-R2AR8CRT\filip 2021-02-02 16:45:02 +01:00
parent fc23b8cf80
commit 44e47026f8
2 changed files with 32 additions and 2 deletions
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26
src/libslic3r/SLA/SupportPointGenerator.cpp
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@ -312,6 +312,30 @@ void SupportPointGenerator::process(const std::vector<ExPolygons>& slices, const
} }
} }
std::vector<Vec2f> SupportPointGenerator::uniform_cover_island(
SupportPointGenerator::Structure &structure)
{
// X is maximal distance between 2 support points on island
float x = 10;
float one_support_area = M_PI * x;
const ExPolygon &island = *structure.polygon;
float area = structure.area;
const Point & bb_size = structure.bbox.size();
// only one support point?
if (area < one_support_area &&
bb_size[0] < x &&
bb_size[1] < x ) {
structure.centroid
}
// longest distance in area
float size = getSize()
// calculate island moments
// unit support force 11.1f / density_relative(1.)
}
void SupportPointGenerator::add_support_points(SupportPointGenerator::Structure &s, SupportPointGenerator::PointGrid3D &grid3d) void SupportPointGenerator::add_support_points(SupportPointGenerator::Structure &s, SupportPointGenerator::PointGrid3D &grid3d)
{ {
// Select each type of surface (overrhang, dangling, slope), derive the support // Select each type of surface (overrhang, dangling, slope), derive the support
@ -324,6 +348,7 @@ void SupportPointGenerator::add_support_points(SupportPointGenerator::Structure
// completely new island - needs support no doubt // completely new island - needs support no doubt
// deficit is full, there is nothing below that would hold this island // deficit is full, there is nothing below that would hold this island
uniformly_cover({ *s.polygon }, s, s.area * tp, grid3d, IslandCoverageFlags(icfIsNew | icfWithBoundary) ); uniformly_cover({ *s.polygon }, s, s.area * tp, grid3d, IslandCoverageFlags(icfIsNew | icfWithBoundary) );
grid3d.insert(uniform_cover_island(s), s);
return; return;
} }
@ -559,7 +584,6 @@ static inline std::vector<Vec2f> poisson_disk_from_samples(const std::vector<Vec
return out; return out;
} }
void SupportPointGenerator::uniformly_cover(const ExPolygons& islands, Structure& structure, float deficit, PointGrid3D &grid3d, IslandCoverageFlags flags) void SupportPointGenerator::uniformly_cover(const ExPolygons& islands, Structure& structure, float deficit, PointGrid3D &grid3d, IslandCoverageFlags flags)
{ {
//int num_of_points = std::max(1, (int)((island.area()*pow(SCALING_FACTOR, 2) * m_config.tear_pressure)/m_config.support_force)); //int num_of_points = std::max(1, (int)((island.area()*pow(SCALING_FACTOR, 2) * m_config.tear_pressure)/m_config.support_force));

8
src/libslic3r/SLA/SupportPointGenerator.hpp
View File

@ -161,6 +161,11 @@ public:
grid.emplace(cell_id(pt.position), pt); grid.emplace(cell_id(pt.position), pt);
} }
void insert(const std::vector<Vec2f> &pos, Structure *island)
{
for (const auto &p : pos) insert(p, island);
}
bool collides_with(const Vec2f &pos, float print_z, float radius) { bool collides_with(const Vec2f &pos, float print_z, float radius) {
Vec3f pos3d(pos.x(), pos.y(), print_z); Vec3f pos3d(pos.x(), pos.y(), print_z);
Vec3i cell = cell_id(pos3d); Vec3i cell = cell_id(pos3d);
@ -204,8 +209,9 @@ private:
public: public:
enum IslandCoverageFlags : uint8_t { icfNone = 0x0, icfIsNew = 0x1, icfWithBoundary = 0x2 }; enum IslandCoverageFlags : uint8_t { icfNone = 0x0, icfIsNew = 0x1, icfWithBoundary = 0x2 };
public: // for testing
std::vector<Vec2f> uniform_cover_island(SupportPointGenerator::Structure &structure);
private: private:
void uniformly_cover(const ExPolygons& islands, Structure& structure, float deficit, PointGrid3D &grid3d, IslandCoverageFlags flags = icfNone); void uniformly_cover(const ExPolygons& islands, Structure& structure, float deficit, PointGrid3D &grid3d, IslandCoverageFlags flags = icfNone);
void add_support_points(Structure& structure, PointGrid3D &grid3d); void add_support_points(Structure& structure, PointGrid3D &grid3d);