UV mirror tool (copies UVs from one side of the mesh to the other)

WIP, suffers from editmode bug where editmode python tools cant have redo-options set. and needs options for precission.

release/scripts/modules/bpy_types.py

@@ -388,10 +388,19 @@ class MeshEdge(StructRNA):
 
 class MeshFace(StructRNA):
     __slots__ = ()
+    @property
+    def center(self):
+        """The midpoint of the face."""
+        face_verts = self.verts[:]
+        mesh_verts = self.id_data.verts
+        if len(face_verts) == 3:
+            return (mesh_verts[face_verts[0]].co + mesh_verts[face_verts[1]].co + mesh_verts[face_verts[2]].co) / 3.0
+        else:
+            return (mesh_verts[face_verts[0]].co + mesh_verts[face_verts[1]].co + mesh_verts[face_verts[2]].co + mesh_verts[face_verts[3]].co) / 4.0
 
     @property
     def edge_keys(self):
-        verts = tuple(self.verts)
+        verts = self.verts[:]
         if len(verts) == 3:
             return ord_ind(verts[0], verts[1]), ord_ind(verts[1], verts[2]), ord_ind(verts[2], verts[0])
 

release/scripts/op/mesh.py

@@ -20,37 +20,6 @@
 
 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
-
-    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.'''
 
@@ -64,12 +33,149 @@ class MeshSelectInteriorFaces(bpy.types.Operator):
         return (ob and ob.type == 'MESH')
 
     def execute(self, context):
-        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
+
+        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)
         return {'FINISHED'}
 
 
+class MeshMirrorUV(bpy.types.Operator):
+    '''Copy mirror UV coordinates on the X axis based on a mirrored mesh'''
+    bl_idname = "mesh.faces_miror_uv"
+    bl_label = "Copy Mirrored UV coords"
+    bl_register = True
+    bl_undo = True
+    
+    def poll(self, context):
+        ob = context.active_object
+        return (ob and ob.type == 'MESH')
+        
+    def execute(self, context):
+        DIR = 1 # TODO, make an option
+        
+        from Mathutils import Vector
+        
+        ob = context.active_object
+        is_editmode = (ob.mode == 'EDIT')
+        if is_editmode:
+            bpy.ops.object.mode_set(mode='OBJECT', toggle=False)
+
+        mesh = ob.data
+        
+        # mirror lookups
+        mirror_gt = {}
+        mirror_lt = {}
+
+        vcos = [v.co.toTuple(5) for v in mesh.verts]
+
+        for i, co in enumerate(vcos):
+            if co[0] > 0.0:
+                mirror_gt[co] = i
+            elif co[0] < 0.0:
+                mirror_lt[co] = i
+            else:
+                mirror_gt[co] = i
+                mirror_lt[co] = i
+
+        #for i, v in enumerate(mesh.verts):
+        vmap = {}
+        for mirror_a, mirror_b in (mirror_gt, mirror_lt), (mirror_lt, mirror_gt):
+            for co, i in mirror_a.items():
+                nco = (-co[0], co[1], co[2])
+                j = mirror_b.get(nco)
+                if j is not None:
+                    vmap[i] = j
+        
+
+        active_uv_layer = None
+        for lay in mesh.uv_textures:
+            if lay.active:
+                active_uv_layer = lay.data
+                break
+
+        fuvs = [(uv.uv1, uv.uv2, uv.uv3, uv.uv4) for uv in active_uv_layer]
+        fuvs_cpy = [(uv[0].copy(), uv[1].copy(), uv[2].copy(), uv[3].copy()) for uv in fuvs]
+        
+        # as a list
+        faces = mesh.faces[:]
+        
+        fuvsel = [(False not in uv.uv_selected) for uv in active_uv_layer]
+        fcents = [f.center for f in faces]
+        
+        # find mirror faces
+        mirror_fm = {}
+        for i, f in enumerate(faces):
+            verts = f.verts[:]
+            verts.sort()
+            verts = tuple(verts)
+            mirror_fm[verts] = i
+        
+        fmap = {}
+        for i, f in enumerate(faces):
+            verts = [vmap.get(j) for j in f.verts]
+            if None not in verts:
+                verts.sort()
+                j = mirror_fm.get(tuple(verts))
+                if j is not None:
+                    fmap[i] = j
+                
+        done = [False] * len(faces)
+        for i, j in fmap.items():
+            
+            if not fuvsel[i] or not fuvsel[j]:
+                continue
+            elif DIR == 0 and fcents[i][0] < 0.0:
+                continue
+            elif DIR == 1 and fcents[i][0] > 0.0:
+                continue
+
+            # copy UVs
+            uv1= fuvs[i]
+            uv2= fuvs_cpy[j]
+            
+            # get the correct rotation
+            v1 = faces[j].verts[:]
+            v2 = [vmap[k] for k in faces[i].verts[:]]
+            
+
+            for k in range(len(uv1)):
+                k_map = v1.index(v2[k])
+                uv1[k].x = -(uv2[k_map].x-0.5) + 0.5
+                uv1[k].y = uv2[k_map].y
+            
+        if is_editmode:
+            bpy.ops.object.mode_set(mode='EDIT', toggle=False)
+
+        return {'FINISHED'}
+
 # Register the operator
 bpy.types.register(MeshSelectInteriorFaces)
+bpy.types.register(MeshMirrorUV)
 
 if __name__ == "__main__":
-    bpy.ops.mesh.faces_select_interior()
+    # bpy.ops.mesh.faces_select_interior()
+    bpy.ops.mesh.faces_miror_uv()

release/scripts/ui/space_image.py

@@ -219,6 +219,7 @@ class IMAGE_MT_uvs(bpy.types.Menu):
         layout.operator("uv.average_islands_scale")
         layout.operator("uv.minimize_stretch")
         layout.operator("uv.stitch")
+        layout.operator("mesh.faces_miror_uv")
 
         layout.separator()
 

source/blender/editors/animation/anim_markers.c

@@ -1012,7 +1012,6 @@ static int ed_marker_make_links_scene_exec(bContext *C, wmOperator *op)
 		}
 	}
 
-	/* one day multiple scenes will be visible, then we should have some update function for them */
 	return OPERATOR_FINISHED;
 }
 

source/blender/makesrna/intern/CMakeLists.txt

@@ -99,7 +99,7 @@ TARGET_LINK_LIBRARIES(makesrna bf_dna)
 # Output rna_*_gen.c
 ADD_CUSTOM_COMMAND(
 	OUTPUT ${GENSRC}
-	# with crashes try add this after COMMEND: valgrind --leak-check=full --track-origins=yes 
+	# with crashes try add this after COMMAND: valgrind --leak-check=full --track-origins=yes 
 	COMMAND ${CMAKE_BINARY_DIR}/bin/${CMAKE_CFG_INTDIR}/makesrna ${CMAKE_CURRENT_BINARY_DIR}/
 	DEPENDS makesrna
 )