Ported make_perimeters() to C++

4 files changed, 40 insertions, 3 deletions

diff --git a/xs/src/libslic3r/ExtrusionEntityCollection.hpp b/xs/src/libslic3r/ExtrusionEntityCollection.hpp
index 504c82ae1..62909c55c 100644
--- a/xs/src/libslic3r/ExtrusionEntityCollection.hpp
+++ b/xs/src/libslic3r/ExtrusionEntityCollection.hpp
@@ -29,6 +29,9 @@ class ExtrusionEntityCollection : public ExtrusionEntity
     bool empty() const {
         return this->entities.empty();
     };
+    void clear() {
+        this->entities.clear();
+    };
     void swap (ExtrusionEntityCollection &c);
     void append(const ExtrusionEntity &entity);
     void append(const ExtrusionEntitiesPtr &entities);
diff --git a/xs/src/libslic3r/Layer.hpp b/xs/src/libslic3r/Layer.hpp
index 85f4844cb..1c09b5f0f 100644
--- a/xs/src/libslic3r/Layer.hpp
+++ b/xs/src/libslic3r/Layer.hpp
@@ -57,6 +57,7 @@ class LayerRegion
     Flow flow(FlowRole role, bool bridge = false, double width = -1) const;
     void merge_slices();
     void prepare_fill_surfaces();
+    void make_perimeters(const SurfaceCollection &slices, SurfaceCollection* fill_surfaces);
     
     private:
     Layer *_layer;
diff --git a/xs/src/libslic3r/LayerRegion.cpp b/xs/src/libslic3r/LayerRegion.cpp
index d09ea19c7..ef6150015 100644
--- a/xs/src/libslic3r/LayerRegion.cpp
+++ b/xs/src/libslic3r/LayerRegion.cpp
@@ -1,5 +1,6 @@
 #include "Layer.hpp"
 #include "ClipperUtils.hpp"
+#include "PerimeterGenerator.hpp"
 #include "Print.hpp"
 #include "Surface.hpp"
 
@@ -54,6 +55,38 @@ LayerRegion::merge_slices()
 }
 
 void
+LayerRegion::make_perimeters(const SurfaceCollection &slices, SurfaceCollection* fill_surfaces)
+{
+    this->perimeters.clear();
+    this->thin_fills.clear();
+    
+    PerimeterGenerator g(
+        // input:
+        &slices,
+        this->layer()->height,
+        this->flow(frPerimeter),
+        &this->region()->config,
+        &this->layer()->object()->config,
+        &this->layer()->object()->print()->config,
+        
+        // output:
+        &this->perimeters,
+        &this->thin_fills,
+        fill_surfaces
+    );
+    
+    if (this->layer()->lower_layer != NULL)
+        g.lower_slices = &this->layer()->lower_layer->slices;
+    
+    g.layer_id              = this->layer()->id();
+    g.ext_perimeter_flow    = this->flow(frExternalPerimeter);
+    g.overhang_flow         = this->region()->flow(frPerimeter, -1, true, false, -1, *this->layer()->object());
+    g.solid_infill_flow     = this->flow(frSolidInfill);
+    
+    g.process();
+}
+
+void
 LayerRegion::prepare_fill_surfaces()
 {
     /*  Note: in order to make the psPrepareInfill step idempotent, we should never
diff --git a/xs/src/libslic3r/PerimeterGenerator.hpp b/xs/src/libslic3r/PerimeterGenerator.hpp
index 6465d63f9..8ce5f87d9 100644
--- a/xs/src/libslic3r/PerimeterGenerator.hpp
+++ b/xs/src/libslic3r/PerimeterGenerator.hpp
@@ -30,8 +30,8 @@ class PerimeterGeneratorLoop {
 
 class PerimeterGenerator {
     public:
-    SurfaceCollection* slices;
-    ExPolygonCollection* lower_slices;
+    const SurfaceCollection* slices;
+    const ExPolygonCollection* lower_slices;
     double layer_height;
     int layer_id;
     Flow perimeter_flow;
@@ -45,7 +45,7 @@ class PerimeterGenerator {
     ExtrusionEntityCollection* gap_fill;
     SurfaceCollection* fill_surfaces;
     
-    PerimeterGenerator(SurfaceCollection* slices, double layer_height, Flow flow,
+    PerimeterGenerator(const SurfaceCollection* slices, double layer_height, Flow flow,
         PrintRegionConfig* config, PrintObjectConfig* object_config, 
         PrintConfig* print_config, ExtrusionEntityCollection* loops, 
         ExtrusionEntityCollection* gap_fill, SurfaceCollection* fill_surfaces)