First version of SLA support points generation

src/libslic3r/SLA/SLAAutoSupports.hpp

@@ -0,0 +1,41 @@
+#ifndef SLAAUTOSUPPORTS_HPP_
+#define SLAAUTOSUPPORTS_HPP_
+
+#include <libslic3r/Point.hpp>
+
+
+namespace Slic3r {
+
+class ModelObject;
+
+
+
+
+class SLAAutoSupports {
+public:
+    struct Config {
+            float density_at_horizontal;
+            float density_at_45;
+            float minimal_z;
+        };
+
+    SLAAutoSupports(ModelObject& mo, const SLAAutoSupports::Config& c);
+    void generate();
+
+private:
+    TriangleMesh mesh;
+    static float angle_from_normal(const stl_normal& normal) { return acos((-normal.normalized())(2)); }
+    float get_required_density(float angle) const;
+    static float approximate_geodesic_distance(const Vec3f& p1, const Vec3f& p2, Vec3f& n1, Vec3f& n2);
+
+    ModelObject& m_model_object;
+    SLAAutoSupports::Config m_config;
+};
+
+
+
+
+} // namespace Slic3r
+
+
+#endif // SLAAUTOSUPPORTS_HPP_