Ported some ModelObject methods from Perl to C++.

Added some utility functions to TriangleMesh, thanks to @alexrj
Some porting to C++ based on work by @alexrj.

1 files changed, 41 insertions, 0 deletions

diff --git a/xs/src/libslic3r/TriangleMesh.cpp b/xs/src/libslic3r/TriangleMesh.cpp
index ee1dc7315..f2f05a841 100644
--- a/xs/src/libslic3r/TriangleMesh.cpp
+++ b/xs/src/libslic3r/TriangleMesh.cpp
@@ -215,6 +215,47 @@ TriangleMesh::repair() {
     BOOST_LOG_TRIVIAL(debug) << "TriangleMesh::repair() finished";
 }
 
+
+float TriangleMesh::volume()
+{
+    if (this->stl.stats.volume == -1) 
+        stl_calculate_volume(&this->stl);
+    return this->stl.stats.volume;
+}
+
+void TriangleMesh::check_topology()
+{
+    // checking exact
+    stl_check_facets_exact(&stl);
+    stl.stats.facets_w_1_bad_edge = (stl.stats.connected_facets_2_edge - stl.stats.connected_facets_3_edge);
+    stl.stats.facets_w_2_bad_edge = (stl.stats.connected_facets_1_edge - stl.stats.connected_facets_2_edge);
+    stl.stats.facets_w_3_bad_edge = (stl.stats.number_of_facets - stl.stats.connected_facets_1_edge);
+    
+    // checking nearby
+    //int last_edges_fixed = 0;
+    float tolerance = stl.stats.shortest_edge;
+    float increment = stl.stats.bounding_diameter / 10000.0;
+    int iterations = 2;
+    if (stl.stats.connected_facets_3_edge < stl.stats.number_of_facets) {
+        for (int i = 0; i < iterations; i++) {
+            if (stl.stats.connected_facets_3_edge < stl.stats.number_of_facets) {
+                //printf("Checking nearby. Tolerance= %f Iteration=%d of %d...", tolerance, i + 1, iterations);
+                stl_check_facets_nearby(&stl, tolerance);
+                //printf("  Fixed %d edges.\n", stl.stats.edges_fixed - last_edges_fixed);
+                //last_edges_fixed = stl.stats.edges_fixed;
+                tolerance += increment;
+            } else {
+                break;
+            }
+        }
+    }
+}
+
+bool TriangleMesh::is_manifold() const
+{
+    return this->stl.stats.connected_facets_3_edge == this->stl.stats.number_of_facets;
+}
+
 void
 TriangleMesh::reset_repair_stats() {
     this->stl.stats.degenerate_facets   = 0;