Initial release

src/libslic3r/Arachne/utils/PolylineStitcher.cpp

@@ -0,0 +1,51 @@
+//Copyright (c) 2022 Ultimaker B.V.
+//CuraEngine is released under the terms of the AGPLv3 or higher.
+
+#include "PolylineStitcher.hpp"
+
+#include "ExtrusionLine.hpp"
+#include "libslic3r/Arachne/utils/PolygonsPointIndex.hpp"
+#include "libslic3r/Polygon.hpp"
+
+namespace Slic3r {
+namespace Arachne {
+struct ExtrusionJunction;
+}  // namespace Arachne
+}  // namespace Slic3r
+
+namespace Slic3r::Arachne {
+
+template<> bool PolylineStitcher<VariableWidthLines, ExtrusionLine, ExtrusionJunction>::canReverse(const PathsPointIndex<VariableWidthLines> &ppi)
+{
+    if ((*ppi.polygons)[ppi.poly_idx].is_odd)
+        return true;
+    else
+        return false;
+}
+
+template<> bool PolylineStitcher<Polygons, Polygon, Point>::canReverse(const PathsPointIndex<Polygons> &)
+{
+    return true;
+}
+
+template<> bool PolylineStitcher<VariableWidthLines, ExtrusionLine, ExtrusionJunction>::canConnect(const ExtrusionLine &a, const ExtrusionLine &b)
+{
+    return a.is_odd == b.is_odd;
+}
+
+template<> bool PolylineStitcher<Polygons, Polygon, Point>::canConnect(const Polygon &, const Polygon &)
+{
+    return true;
+}
+
+template<> bool PolylineStitcher<VariableWidthLines, ExtrusionLine, ExtrusionJunction>::isOdd(const ExtrusionLine &line)
+{
+    return line.is_odd;
+}
+
+template<> bool PolylineStitcher<Polygons, Polygon, Point>::isOdd(const Polygon &)
+{
+    return false;
+}
+
+} // namespace Slic3r::Arachne