Select interior faces, access from the mesh select menu

new mesh functions, remove duplicates in uvproject and mesh_skin
- face.edge_keys()
- edge.key()
- mesh.edge_face_count()
- mesh.edge_face_count_dict()

release/scripts/op/mesh.py

@@ -0,0 +1,71 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+# 
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+# 
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+import bpy
+
+def main(context):
+    ob = context.active_object
+    bpy.ops.mesh.selection_type(type='FACE')
+    is_editmode = (ob.mode=='EDIT')
+    if is_editmode:
+        bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
+
+    mesh = ob.data
+    
+    face_list = [face for face in mesh.faces]
+    face_edge_keys = [face.edge_keys() for face in face_list]
+
+    edge_face_count = mesh.edge_face_count_dict(face_edge_keys)
+    
+    def test_interior(index):
+        for key in face_edge_keys[index]:
+            if edge_face_count[key] < 3:
+                return False
+        return True
+
+    for index, face in enumerate(face_list):
+        if(test_interior(index)):
+            face.selected = True
+        else:
+            face.selected = False
+
+    if is_editmode:
+        bpy.ops.object.mode_set(mode='EDIT', toggle=False)
+
+class MeshSelectInteriorFaces(bpy.types.Operator):
+    '''Select faces where all edges have more then 2 face users.'''
+
+    bl_idname = "mesh.faces_select_interior"
+    bl_label = "Select Interior Faces"
+    bl_register = True
+    bl_undo = True
+
+    def poll(self, context):
+        ob = context.active_object
+        return (ob and ob.type == 'MESH')
+
+    def execute(self, context):
+        main(context)
+        return ('FINISHED',)
+
+
+# Register the operator
+bpy.ops.add(MeshSelectInteriorFaces)
+
+if __name__ == "__main__":
+    bpy.ops.mesh.faces_select_interior()