IsBoundaryLoop can now take a different mesh to check

EnvyKong · May 9, 2018 · bff0f42 · bff0f42
1 parent 5d97cc4
commit bff0f42
Show file tree

Hide file tree

Showing 2 changed files with 12 additions and 7 deletions.
diff --git a/mesh/EdgeLoop.cs b/mesh/EdgeLoop.cs
@@ -203,15 +203,18 @@ public bool IsInternalLoop()
 
 
         /// <summary>
-        /// Check if all edges of this loop are boundary edges
+        /// Check if all edges of this loop are boundary edges.
+        /// If testMesh != null, will check that mesh instead of internal Mesh
         /// </summary>
-        public bool IsBoundaryLoop()
+        public bool IsBoundaryLoop(DMesh3 testMesh = null)
         {
+            DMesh3 useMesh = (testMesh != null) ? testMesh : Mesh;
+
             int NV = Vertices.Length;
             for (int i = 0; i < NV; ++i ) {
-                int eid = Mesh.FindEdge(Vertices[i], Vertices[(i + 1) % NV]);
+                int eid = useMesh.FindEdge(Vertices[i], Vertices[(i + 1) % NV]);
                 Debug.Assert(eid != DMesh3.InvalidID);
-                if (Mesh.IsBoundaryEdge(eid) == false)
+                if (useMesh.IsBoundaryEdge(eid) == false)
                     return false;
             }
             return true;

diff --git a/mesh/EdgeSpan.cs b/mesh/EdgeSpan.cs
@@ -128,13 +128,15 @@ public bool IsInternalSpan()
         }
 
 
-        public bool IsBoundarySpan()
+        public bool IsBoundarySpan(DMesh3 testMesh = null)
         {
+            DMesh3 useMesh = (testMesh != null) ? testMesh : Mesh;
+
             int NV = Vertices.Length;
             for (int i = 0; i < NV-1; ++i ) {
-                int eid = Mesh.FindEdge(Vertices[i], Vertices[i + 1]);
+                int eid = useMesh.FindEdge(Vertices[i], Vertices[i + 1]);
                 Debug.Assert(eid != DMesh3.InvalidID);
-                if (Mesh.IsBoundaryEdge(eid) == false)
+                if (useMesh.IsBoundaryEdge(eid) == false)
                     return false;
             }
             return true;