Merge branch 'master' of https://github.com/prusa3d/PrusaSlicer into et_gcode_viewer

src/libslic3r/BoundingBox.cpp

@@ -11,17 +11,6 @@ template BoundingBoxBase<Vec2d>::BoundingBoxBase(const std::vector<Vec2d> &point
 
 template BoundingBox3Base<Vec3d>::BoundingBox3Base(const std::vector<Vec3d> &points);
 
-BoundingBox::BoundingBox(const Lines &lines)
-{
-    Points points;
-    points.reserve(lines.size());
-    for (const Line &line : lines) {
-        points.emplace_back(line.a);
-        points.emplace_back(line.b);
-    }
-    *this = BoundingBox(points);
-}
-
 void BoundingBox::polygon(Polygon* polygon) const
 {
     polygon->points.clear();

src/libslic3r/BoundingBox.hpp

@@ -20,9 +20,10 @@ public:
         min(pmin), max(pmax), defined(pmin(0) < pmax(0) && pmin(1) < pmax(1)) {}
     BoundingBoxBase(const std::vector<PointClass>& points) : min(PointClass::Zero()), max(PointClass::Zero())
     {
-        if (points.empty())
+        if (points.empty()) {
-            throw std::invalid_argument("Empty point set supplied to BoundingBoxBase constructor");
+            this->defined = false;
-
+            // throw std::invalid_argument("Empty point set supplied to BoundingBoxBase constructor");
+        } else {
             typename std::vector<PointClass>::const_iterator it = points.begin();
             this->min = *it;
             this->max = *it;
@@ -32,6 +33,7 @@ public:
             }
             this->defined = (this->min(0) < this->max(0)) && (this->min(1) < this->max(1));
         }
+    }
     void reset() { this->defined = false; this->min = PointClass::Zero(); this->max = PointClass::Zero(); }
     void merge(const PointClass &point);
     void merge(const std::vector<PointClass> &points);
@@ -143,7 +145,6 @@ public:
     BoundingBox() : BoundingBoxBase<Point>() {}
     BoundingBox(const Point &pmin, const Point &pmax) : BoundingBoxBase<Point>(pmin, pmax) {}
     BoundingBox(const Points &points) : BoundingBoxBase<Point>(points) {}
-    BoundingBox(const Lines &lines);
 
     friend BoundingBox get_extents_rotated(const Points &points, double angle);
 };

src/libslic3r/Geometry.hpp

@@ -10,6 +10,7 @@
 // Serialization through the Cereal library
 #include <cereal/access.hpp>
 
+#define BOOST_VORONOI_USE_GMP 1
 #include "boost/polygon/voronoi.hpp"
 
 namespace ClipperLib {

src/libslic3r/Line.cpp

@@ -125,4 +125,14 @@ Vec3d Linef3::intersect_plane(double z) const
     return Vec3d(this->a(0) + v(0) * t, this->a(1) + v(1) * t, z);
 }
 
+BoundingBox get_extents(const Lines &lines)
+{
+    BoundingBox bbox;
+    for (const Line &line : lines) {
+        bbox.merge(line.a);
+        bbox.merge(line.b);
+    }
+    return bbox;
+}
+
 }

src/libslic3r/Line.hpp

@@ -103,6 +103,8 @@ public:
     Vec3d b;
 };
 
+extern BoundingBox get_extents(const Lines &lines);
+
 } // namespace Slic3r
 
 // start Boost

src/libslic3r/MotionPlanner.cpp

@@ -6,6 +6,7 @@
 #include <limits> // for numeric_limits
 #include <assert.h>
 
+#define BOOST_VORONOI_USE_GMP 1
 #include "boost/polygon/voronoi.hpp"
 using boost::polygon::voronoi_builder;
 using boost::polygon::voronoi_diagram;

src/slic3r/GUI/Gizmos/GLGizmoCut.cpp

@@ -198,12 +198,20 @@ void GLGizmoCut::set_cut_z(double cut_z) const
 
 void GLGizmoCut::perform_cut(const Selection& selection)
 {
-    const auto instance_idx = selection.get_instance_idx();
+    const int instance_idx = selection.get_instance_idx();
-    const auto object_idx = selection.get_object_idx();
+    const int object_idx = selection.get_object_idx();
 
     wxCHECK_RET(instance_idx >= 0 && object_idx >= 0, "GLGizmoCut: Invalid object selection");
 
-    wxGetApp().plater()->cut(object_idx, instance_idx, m_cut_z, m_keep_upper, m_keep_lower, m_rotate_lower);
+    // m_cut_z is the distance from the bed. Subtract possible SLA elevation.
+    const GLVolume* first_glvolume = selection.get_volume(*selection.get_volume_idxs().begin());
+    coordf_t object_cut_z = m_cut_z - first_glvolume->get_sla_shift_z();
+
+    if (object_cut_z > 0.)
+        wxGetApp().plater()->cut(object_idx, instance_idx, object_cut_z, m_keep_upper, m_keep_lower, m_rotate_lower);
+    else {
+        // the object is SLA-elevated and the plane is under it.
+    }
 }
 
 double GLGizmoCut::calc_projection(const Linef3& mouse_ray) const

tests/libslic3r/CMakeLists.txt

@@ -16,6 +16,7 @@ add_executable(${_TEST_NAME}_tests
 	test_meshboolean.cpp
 	test_marchingsquares.cpp
 	test_timeutils.cpp
+	test_voronoi.cpp
 	)
 
 if (TARGET OpenVDB::openvdb)