[Bf-extensions-cvs] SVN commit: /data/svn/bf-extensions [581] trunk/py/scripts/addons/ add_mesh_gem.py: * v1.2 Updated gem script to use/write new recall data.
Martin Buerbaum
martin.buerbaum at gmx.at
Thu Apr 15 10:19:06 CEST 2010
Revision: 581
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-extensions&revision=581
Author: pontiac
Date: 2010-04-15 10:19:06 +0200 (Thu, 15 Apr 2010)
Log Message:
-----------
* v1.2 Updated gem script to use/write new recall data.
Modified Paths:
--------------
trunk/py/scripts/addons/add_mesh_gem.py
Modified: trunk/py/scripts/addons/add_mesh_gem.py
===================================================================
--- trunk/py/scripts/addons/add_mesh_gem.py 2010-04-15 08:18:04 UTC (rev 580)
+++ trunk/py/scripts/addons/add_mesh_gem.py 2010-04-15 08:19:06 UTC (rev 581)
@@ -23,7 +23,7 @@
bl_addon_info = {
'name': 'Add Mesh: Gem',
'author': 'Dreampainter',
- 'version': '1.1',
+ 'version': '1.2',
'blender': (2, 5, 3),
'location': 'View3D > Add > Mesh ',
'description': 'Adds a mesh Gem to the Add Mesh menu',
@@ -35,26 +35,33 @@
import bpy
-# Stores the values of a list of properties in a
-# property group (named like the operator) in the object.
-# Always replaces any existing property group with the same name!
-# @todo: Should we do this in EDIT Mode? Sounds dangerous.
-def obj_store_recall_properties(ob, op, prop_list):
- if ob and op and prop_list:
- #print("Storing recall data for operator: " + op.bl_idname) # DEBUG
+# Stores the values of a list of properties and the
+# operator id in a property group ('recall_op') inside the object.
+# Could (in theory) be used for non-objects.
+# Note: Replaces any existing property group with the same name!
+# ob ... Object to store the properties in.
+# op ... The operator that should be used.
+# op_args ... A dictionary with valid Blender
+# properties (operator arguments/parameters).
+def store_recall_properties(ob, op, op_args):
+ if ob and op and op_args:
+ recall_properties = {}
+ # Add the operator identifier and op parameters to the properties.
+ recall_properties['op'] = op.bl_idname
+ recall_properties['args'] = op_args
+
# Store new recall properties.
- prop_list['recall_op'] = op.bl_idname
- ob['recall'] = prop_list
+ ob['recall'] = recall_properties
-# Apply view rotation to objects if "Align To" for new objects
-# was set to "VIEW" in the User Preference.
-def apply_view_rotation(context, ob):
- align = bpy.context.user_preferences.edit.object_align
+# Apply view rotation to objects if "Align To" for
+# new objects was set to "VIEW" in the User Preference.
+def apply_object_align(context, ob):
+ obj_align = bpy.context.user_preferences.edit.object_align
if (context.space_data.type == 'VIEW_3D'
- and align == 'VIEW'):
+ and obj_align == 'VIEW'):
view3d = context.space_data
region = view3d.region_3d
viewMatrix = region.view_matrix
@@ -62,46 +69,56 @@
ob.rotation_euler = rot.invert().to_euler()
-def createObject(context, verts, faces, name, edit):
- '''Creates Meshes & Objects for the given lists of vertices and faces.'''
-
+# Create a new mesh (object) from verts/edges/faces.
+# verts/edges/faces ... List of vertices/edges/faces for the
+# new mesh (as used in from_pydata).
+# name ... Name of the new mesh (& object).
+# edit ... Replace existing mesh data.
+# Note: Using "edit" will destroy/delete existing mesh data.
+def create_mesh_object(context, verts, edges, faces, name, edit):
scene = context.scene
+ obj_act = scene.objects.active
+ # Can't edit anything, unless we have an active obj.
+ if edit and not obj_act:
+ return None
+
# Create new mesh
mesh = bpy.data.meshes.new(name)
- # Add the geometry to the mesh.
- #mesh.add_geometry(len(verts), 0, len(faces))
- #mesh.verts.foreach_set("co", unpack_list(verts))
- #mesh.faces.foreach_set("verts_raw", unpack_face_list(faces))
+ # Make a mesh from a list of verts/edges/faces.
+ mesh.from_pydata(verts, edges, faces)
- # To quote the documentation:
- # "Make a mesh from a list of verts/edges/faces Until we have a nicer
- # way to make geometry, use this."
- # http://www.blender.org/documentation/250PythonDoc/
- # bpy.types.Mesh.html#bpy.types.Mesh.from_pydata
- mesh.from_pydata(verts, [], faces)
+ # Update mesh geometry after adding stuff.
+ mesh.update()
# Deselect all objects.
bpy.ops.object.select_all(action='DESELECT')
- # Update mesh geometry after adding stuff.
- mesh.update()
+ if edit:
+ # Replace geometry of existing object
- if edit:
- # Recreate geometry of existing object
- obj_act = context.active_object
+ # Use the active obj and select it.
ob_new = obj_act
+ ob_new.selected = True
- bpy.ops.object.mode_set(mode='EDIT')
- bpy.ops.mesh.select_all(action='SELECT')
- bpy.ops.mesh.delete(type='VERT')
- bpy.ops.object.mode_set(mode='OBJECT')
+ if obj_act.mode == 'OBJECT':
+ # Get existing mesh datablock.
+ old_mesh = ob_new.data
- ob_new.data = mesh
+ # Set object data to nothing
+ ob_new.data = None
- ob_new.selected = True
+ # Clear users of existing mesh datablock.
+ old_mesh.user_clear()
+ # Remove old mesh datablock if no users are left.
+ if (old_mesh.users == 0):
+ bpy.data.meshes.remove(old_mesh)
+
+ # Assign new mesh datablock.
+ ob_new.data = mesh
+
else:
# Create new object
ob_new = bpy.data.objects.new(name, mesh)
@@ -113,10 +130,8 @@
# Place the object at the 3D cursor location.
ob_new.location = scene.cursor_location
- obj_act = scene.objects.active
+ apply_object_align(context, ob_new)
- apply_view_rotation(context, ob_new)
-
if obj_act and obj_act.mode == 'EDIT':
if not edit:
# We are in EditMode, switch to ObjectMode.
@@ -134,6 +149,8 @@
# Switching back to EditMode.
bpy.ops.object.mode_set(mode='EDIT')
+ ob_new = obj_act
+
else:
# We are in ObjectMode.
# Make the new object the active one.
@@ -244,17 +261,17 @@
props.pav_height,
props.crown_height)
- obj = createObject(context, verts, faces, "Gem", props.edit)
+ obj = create_mesh_object(context, verts, [], faces, "Gem", props.edit)
# Store 'recall' properties in the object.
- recall_prop_list = {
+ recall_args_list = {
"edit": True,
"segments": props.segments,
"pav_radius": props.pav_radius,
"crown_radius": props.crown_radius,
"pav_height": props.pav_height,
"crown_height": props.crown_height}
- obj_store_recall_properties(obj, self, recall_prop_list)
+ store_recall_properties(obj, self, recall_args_list)
return {'FINISHED'}
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