Fix test

+ Comment debug output
+ Add was_canceled in cut surface

src/libslic3r/AABBTreeLines.hpp

@@ -91,18 +91,19 @@ inline AABBTreeIndirect::Tree<2, typename LineType::Scalar> build_aabb_tree_over
 // Finding a closest line, its closest point and squared distance to the closest point
 // Returns squared distance to the closest point or -1 if the input is empty.
 // or no closer point than max_sq_dist
-template<typename LineType, typename TreeType, typename VectorType, typename Scalar = typename VectorType::Scalar>
+template<typename LineType, typename TreeType, typename VectorType>
-inline typename Scalar squared_distance_to_indexed_lines(const std::vector<LineType>        &lines,
+inline typename VectorType::Scalar squared_distance_to_indexed_lines(
+    const std::vector<LineType>        &lines,
     const TreeType                     &tree,
     const VectorType                   &point,
     size_t                             &hit_idx_out,
     Eigen::PlainObjectBase<VectorType> &hit_point_out,
-                                                         Scalar max_sqr_dist = std::numeric_limits<Scalar>::infinity())
+    typename VectorType::Scalar         max_sqr_dist = std::numeric_limits<typename VectorType::Scalar>::infinity())
 {
-    if (tree.empty()) return Scalar(-1);
+    if (tree.empty()) return VectorType::Scalar(-1);
     auto distancer = detail::IndexedLinesDistancer<LineType, TreeType, VectorType>{lines, tree, point};
     return AABBTreeIndirect::detail::squared_distance_to_indexed_primitives_recursive(
-        distancer, size_t(0), Scalar(0), max_sqr_dist, hit_idx_out, hit_point_out);
+        distancer, size_t(0), VectorType::Scalar(0), max_sqr_dist, hit_idx_out, hit_point_out);
 }
 
 // Returns all lines within the given radius limit

src/libslic3r/CutSurface.cpp

@@ -20,7 +20,7 @@
 /// patches/patch{O}.off
 /// result.obj - Merged result its
 /// result_contours/{O}.obj - visualization of contours for result patches
-#define DEBUG_OUTPUT_DIR std::string("C:/data/temp/cutSurface/")
+//#define DEBUG_OUTPUT_DIR std::string("C:/data/temp/cutSurface/")
 
 using namespace Slic3r;
 #include "ExPolygonsIndex.hpp"
@@ -1058,7 +1058,7 @@ priv::CutMesh priv::to_cgal(const ExPolygons  &shapes,
         for (const Polygon &hole : shape.holes)
             insert_contour(hole);
     }
-    assert(!exist_duplicit_point(result));
+    assert(!exist_duplicit_vertex(result));
     return result;
 }
 
@@ -3209,8 +3209,6 @@ std::vector<bool> priv::select_patches(const ProjectionDistances &best_distances
         for (uint32_t patch_index : used_shape_patches) { 
             ExPolygon patch_area = to_expoly(patches[patch_index], projection);
             //*/
-            // add save offset extension to cover numerical mistake made by back projection to 2d
-            const float extend_delta = 5.f;
             ExPolygons patch_areas = offset_ex(patch_area, extend_delta);
             fill.insert(fill.end(), patch_areas.begin(), patch_areas.end());            
             /*/

src/libslic3r/Emboss.cpp

@@ -43,7 +43,6 @@ Point to_point(const stbtt__point &point);
 bool remove_same_neighbor(Slic3r::Points &points);
 bool remove_same_neighbor(Slic3r::Polygons &polygons);
 bool remove_same_neighbor(ExPolygons &expolygons);
-bool divide_segments_for_close_point(ExPolygons &expolygons, double distance = .6);
 
 // NOTE: expolygons can't contain same_neighbor
 Points collect_close_points(const ExPolygons &expolygons, double distance = .6);
@@ -173,13 +172,13 @@ Points priv::collect_close_points(const ExPolygons &expolygons, double distance)
     return res;
 }
 
-bool priv::divide_segments_for_close_point(ExPolygons &expolygons, double distance)
+bool Emboss::divide_segments_for_close_point(ExPolygons &expolygons, double distance)
 {
     if (expolygons.empty()) return false;
     if (distance < 0.) return false;
 
     // ExPolygons can't contain same neigbours
-    remove_same_neighbor(expolygons);
+    priv::remove_same_neighbor(expolygons);
 
     // IMPROVE: use int(insted of double) lines and tree
     const ExPolygonsIndices ids(expolygons);

src/libslic3r/Emboss.hpp

@@ -177,6 +177,17 @@ public:
     /// <returns>True when shapes is good otherwise False</returns>
     static bool heal_shape(ExPolygons &shape, unsigned max_iteration = 10);
 
+    /// <summary>
+    /// Divide line segments in place near to point
+    /// (which could lead to self intersection due to preccision)
+    /// Remove same neighbors
+    /// Note: Possible part of heal shape
+    /// </summary>
+    /// <param name="expolygons">Expolygon to edit</param>
+    /// <param name="distance">(epsilon)Euclidean distance from point to line which divide line</param>
+    /// <returns>True when some division was made otherwise false</returns>
+    static bool divide_segments_for_close_point(ExPolygons &expolygons, double distance);
+
     /// <summary>
     /// Use data from font property to modify transformation
     /// </summary>

src/slic3r/GUI/Jobs/EmbossJob.cpp

@@ -356,7 +356,7 @@ void UseSurfaceJob::process(Ctl &ctl) {
     const TextConfiguration &tc   = m_input.text_configuration;
     const char              *text = tc.text.c_str();
     const FontProp          &fp   = tc.style.prop;
-    ExPolygons shapes = Emboss::text2shapes(m_input.font_file, text, fp);
+    ExPolygons shapes = Emboss::text2shapes(m_input.font_file, text, fp, was_canceled);
     if (shapes.empty() || shapes.front().contour.empty())
         throw priv::EmbossJobException(
             _u8L("Font doesn't have any shape for given text.").c_str());

tests/libslic3r/test_emboss.cpp

@@ -283,9 +283,9 @@ TEST_CASE("Heal of points close to line", "[Emboss]")
     Polygon polygon = polygons.front();
     polygon.points.pop_back();// NSVG put first point as last one when polygon is closed
     ExPolygons expoly({ExPolygon(polygon)});
-    Emboss::heal_shape(expoly);
+    CHECK(Emboss::divide_segments_for_close_point(expoly, .6));
     //{ SVG svg("C:/data/temp/healed.svg"); svg.draw(expoly);}
-    CHECK(expoly.size() == 3);
+    CHECK(to_points(expoly).size() >= (to_points(polygon).size() + 2));
 }
 
 TEST_CASE("Convert text with glyph cache to model", "[Emboss]")