1 files changed, 57 insertions, 0 deletions
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.cpp b/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.cpp
new file mode 100644
index 0000000000..671650296c
--- /dev/null
+++ b/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.cpp
@@ -0,0 +1,57 @@
+// This code is in the public domain -- castanyo@yahoo.es
+
+#include "nvmesh.h" // pch
+
+#include "Edge.h"
+#include "Vertex.h"
+
+#include "nvmath/Vector.inl"
+
+using namespace nv;
+using namespace HalfEdge;
+
+Vector3 Edge::midPoint() const
+{
+    return (to()->pos + from()->pos) * 0.5f;
+}
+
+float Edge::length() const
+{
+    return ::length(to()->pos - from()->pos); 
+}
+
+// Return angle between this edge and the previous one.
+float Edge::angle() const {
+    Vector3 p = vertex->pos;
+    Vector3 a = prev->vertex->pos;
+    Vector3 b = next->vertex->pos;
+
+    Vector3 v0 = a - p;
+    Vector3 v1 = b - p;
+
+    return acosf(dot(v0, v1) / (nv::length(v0) * nv::length(v1)));
+}
+
+bool Edge::isValid() const
+{
+    // null face is OK.
+    if (next == NULL || prev == NULL || pair == NULL || vertex == NULL) return false;
+    if (next->prev != this) return false;
+    if (prev->next != this) return false;
+    if (pair->pair != this) return false;
+    return true;
+}
+
+/*
+Edge * Edge::nextBoundary() {
+    nvDebugCheck(this->m_pair == NULL);
+
+}
+
+Edge * Edge::prevBoundary() {
+    nvDebugCheck(this->m_pair == NULL);
+
+}
+*/
+
+