mesh auto mirror, promote addons release: T50941

mesh_auto_mirror.py

+######################################################################################################
+# An simple add-on to auto cut in two and mirror an object                                           #
+# Actualy partialy uncommented (see further version)                                                 #
+# Author: Lapineige                                                                                  #
+# License: GPL v3                                                                                    #
+######################################################################################################
+
+
+############# Add-on description (used by Blender)
+
+bl_info = {
+    "name": "Auto Mirror",
+    "description": "Super fast cutting and mirroring for mesh",
+    "author": "Lapineige",
+    "version": (2, 4, 1),
+    "blender": (2, 7, 1),
+    "location": "View 3D > Toolbar > Tools tab > AutoMirror (panel)",
+    "warning": "",
+    "wiki_url": "https://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Modeling/AutoMirror",
+    "tracker_url": "https://developer.blender.org/maniphest/task/edit/form/2/",
+    "category": "Mesh"}
+
+
+import bpy
+from mathutils import Vector
+
+bpy.types.Scene.AutoMirror_axis = bpy.props.EnumProperty(items = [("x", "X", "", 1),
+                                                                  ("y", "Y", "", 2),
+                                                                  ("z", "Z", "", 3)],
+                                                                  description="Axis used by the mirror modifier")
+bpy.types.Scene.AutoMirror_orientation = bpy.props.EnumProperty(items = [("positive","Positive", "", 1),
+                                                                         ("negative", "Negative", "", 2)],
+                                                                         description="Choose the side along the axis of the editable part (+/- coordinates)")
+bpy.types.Scene.AutoMirror_threshold = bpy.props.FloatProperty(default= 0.001,
+                                                               min= 0.001,
+                                                               description="Vertices closer than this distance are merged on the loopcut")
+bpy.types.Scene.AutoMirror_toggle_edit = bpy.props.BoolProperty(default= True,
+                                                                description="If not in edit mode, change mode to edit")
+bpy.types.Scene.AutoMirror_cut = bpy.props.BoolProperty(default= True,
+                                                        description="If enabeled, cut the mesh in two parts and mirror it. If not, just make a loopcut")
+bpy.types.Scene.AutoMirror_clipping = bpy.props.BoolProperty(default=True)
+bpy.types.Scene.AutoMirror_use_clip = bpy.props.BoolProperty(default=True,
+                                                             description="Use clipping for the mirror modifier")
+bpy.types.Scene.AutoMirror_show_on_cage = bpy.props.BoolProperty(default=True,
+                                                                 description="Enable to edit the cage (it's the classical modifier's option)")
+bpy.types.Scene.AutoMirror_apply_mirror = bpy.props.BoolProperty(description="Apply the mirror modifier (useful to symmetrise the mesh)")
+
+############### Operator
+
+class AlignVertices(bpy.types.Operator):
+    """  """
+    bl_idname = "object.align_vertices"
+    bl_label = "Align Vertices on 1 Axis"
+
+    @classmethod
+    def poll(cls, context):
+        return True
+
+    def execute(self, context):
+        bpy.ops.object.mode_set(mode = 'OBJECT')
+
+        x1,y1,z1 = bpy.context.scene.cursor_location
+        bpy.ops.view3d.snap_cursor_to_selected()
+
+        x2,y2,z2 = bpy.context.scene.cursor_location
+
+        bpy.context.scene.cursor_location[0],bpy.context.scene.cursor_location[1],bpy.context.scene.cursor_location[2]  = 0,0,0
+
+        #Vertices coordinate to 0 (local coordinate, so on the origin)
+        for vert in bpy.context.object.data.vertices:
+            if vert.select:
+                if bpy.context.scene.AutoMirror_axis == 'x':
+                    axis = 0
+                elif bpy.context.scene.AutoMirror_axis == 'y':
+                    axis = 1
+                elif bpy.context.scene.AutoMirror_axis == 'z':
+                    axis = 2
+                vert.co[axis] = 0
+        #
+        bpy.context.scene.cursor_location = x2,y2,z2
+
+        bpy.ops.object.origin_set(type='ORIGIN_CURSOR')
+
+        bpy.context.scene.cursor_location = x1,y1,z1
+
+        bpy.ops.object.mode_set(mode = 'EDIT')
+        return {'FINISHED'}
+
+class AutoMirror(bpy.types.Operator):
+    """ Automatically cut an object along an axis """
+    bl_idname = "object.automirror"
+    bl_label = "AutoMirror"
+    bl_options = {'REGISTER'} # 'UNDO' ?
+
+    @classmethod
+    def poll(cls, context):
+        return True
+
+    def draw(self, context):
+        layout = self.layout
+        if bpy.context.object and bpy.context.object.type == 'MESH':
+            layout.prop(context.scene, "AutoMirror_axis", text="Mirror axis")
+            layout.prop(context.scene, "AutoMirror_orientation", text="Orientation")
+            layout.prop(context.scene, "AutoMirror_threshold", text="Threshold")
+            layout.prop(context.scene, "AutoMirror_toggle_edit", text="Toggle edit")
+            layout.prop(context.scene, "AutoMirror_cut", text="Cut and mirror")
+            if bpy.context.scene.AutoMirror_cut:
+                layout.prop(context.scene, "AutoMirror_clipping", text="Clipping")
+                layout.prop(context.scene, "AutoMirror_apply_mirror", text="Apply mirror")
+        else:
+            layout.label(icon="ERROR", text="No mesh selected")
+
+    def get_local_axis_vector(self, context, X, Y, Z, orientation):
+        loc = context.object.location
+        bpy.ops.object.mode_set(mode="OBJECT") # Needed to avoid to translate vertices
+
+        v1 = Vector((loc[0],loc[1],loc[2]))
+        bpy.ops.transform.translate(value=(X*orientation, Y*orientation, Z*orientation),
+                                           constraint_axis=((X==1), (Y==1), (Z==1)),
+                                           constraint_orientation='LOCAL')
+        v2 = Vector((loc[0],loc[1],loc[2]))
+        bpy.ops.transform.translate(value=(-X*orientation, -Y*orientation, -Z*orientation),
+                                           constraint_axis=((X==1), (Y==1), (Z==1)),
+                                           constraint_orientation='LOCAL')
+
+        bpy.ops.object.mode_set(mode="EDIT")
+        return v2-v1
+
+    def execute(self, context):
+        X,Y,Z = 0,0,0
+        if bpy.context.scene.AutoMirror_axis == 'x':
+            X = 1
+        elif bpy.context.scene.AutoMirror_axis == 'y':
+            Y = 1
+        elif bpy.context.scene.AutoMirror_axis == 'z':
+            Z = 1
+
+        current_mode = bpy.context.object.mode # Save the current mode
+
+        if bpy.context.object.mode != "EDIT":
+            bpy.ops.object.mode_set(mode="EDIT") # Go to edit mode
+        bpy.ops.mesh.select_all(action='SELECT') # Select all the vertices
+        if bpy.context.scene.AutoMirror_orientation == 'positive':
+            orientation = 1
+        else:
+            orientation = -1
+        cut_normal = self.get_local_axis_vector(context, X, Y, Z, orientation)
+
+        bpy.ops.mesh.bisect(plane_co=(bpy.context.object.location[0],
+                                      bpy.context.object.location[1],
+                                      bpy.context.object.location[2]),
+                                      plane_no=cut_normal,
+                                      use_fill= False,
+                                      clear_inner= bpy.context.scene.AutoMirror_cut,
+                                      clear_outer= 0,
+                                      threshold= bpy.context.scene.AutoMirror_threshold) # Cut the mesh
+
+        bpy.ops.object.align_vertices() # Use to align the vertices on the origin, needed by the "threshold"
+
+        if not bpy.context.scene.AutoMirror_toggle_edit:
+            bpy.ops.object.mode_set(mode=current_mode) # Reload previous mode
+
+        if bpy.context.scene.AutoMirror_cut:
+            bpy.ops.object.modifier_add(type='MIRROR') # Add a mirror modifier
+            bpy.context.object.modifiers[-1].use_x = X # Choose the axis to use, based on the cut's axis
+            bpy.context.object.modifiers[-1].use_y = Y
+            bpy.context.object.modifiers[-1].use_z = Z
+            bpy.context.object.modifiers[-1].use_clip = context.scene.AutoMirror_use_clip
+            bpy.context.object.modifiers[-1].show_on_cage = context.scene.AutoMirror_show_on_cage
+            if bpy.context.scene.AutoMirror_apply_mirror:
+                bpy.ops.object.mode_set(mode='OBJECT')
+                bpy.ops.object.modifier_apply(apply_as= 'DATA', modifier= bpy.context.object.modifiers[-1].name)
+                if bpy.context.scene.AutoMirror_toggle_edit:
+                    bpy.ops.object.mode_set(mode='EDIT')
+                else:
+                    bpy.ops.object.mode_set(mode=current_mode)
+
+        return {'FINISHED'}
+
+#################### Panel
+
+class BisectMirror(bpy.types.Panel):
+    """ The AutoMirror panel on the toolbar tab 'Tools' """
+    bl_label = "Auto Mirror"
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'TOOLS'
+    bl_category = "Tools"
+
+    def draw(self, context):
+        layout = self.layout
+        if bpy.context.object and bpy.context.object.type == 'MESH':
+            layout.operator("object.automirror")
+            layout.prop(context.scene, "AutoMirror_axis", text="Mirror Axis", expand=True)
+            layout.prop(context.scene, "AutoMirror_orientation", text="Orientation")
+            layout.prop(context.scene, "AutoMirror_threshold", text="Threshold")
+            layout.prop(context.scene, "AutoMirror_toggle_edit", text="Toggle Edit")
+            layout.prop(context.scene, "AutoMirror_cut", text="Cut and Mirror")
+            if bpy.context.scene.AutoMirror_cut:
+                row = layout.row()
+                row.prop(context.scene, "AutoMirror_use_clip", text="Use Clip")
+                row.prop(context.scene, "AutoMirror_show_on_cage", text="Editable")
+                layout.prop(context.scene, "AutoMirror_apply_mirror", text="Apply Mirror")
+
+        else:
+            layout.label(icon="ERROR", text="No mesh selected")
+
+
+def register():
+    bpy.utils.register_class(BisectMirror)
+    bpy.utils.register_class(AutoMirror)
+    bpy.utils.register_class(AlignVertices)
+
+
+def unregister():
+    bpy.utils.unregister_class(BisectMirror)
+    bpy.utils.unregister_class(AutoMirror)
+    bpy.utils.unregister_class(AlignVertices)
+
+
+if __name__ == "__main__":
+    register()