moved mesh-relax to trunk

added pep8 updated wiki link.

[[Split portion of a mixed commit.]]

mesh_relax.py

+# mesh_relax.py Copyright (C) 2010, Fabian Fricke
+#
+# Relaxes selected vertices while retaining the shape as much as possible
+#
+# ***** 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 LICENCE BLOCK *****
+
+bl_addon_info = {
+    'name': 'Mesh: Relax',
+    'author': 'Fabian Fricke',
+    'version': '1.0  2010/04/03',
+    'blender': (2, 5, 3),
+    'location': 'View3D > Specials > Relax ',
+    'description': 'Relax the selected verts while retaining the shape',
+    'url': 'http://wiki.blender.org/index.php/Extensions:2.5/Py/' \
+	    'Scripts/Modeling/Relax',
+    'category': 'Mesh'}
+
+"""
+
+Usage:
+
+Launch from "W-menu" or from "Mesh -> Vertices -> Relax"
+
+
+Additional links:
+    Author Site: http://frigi.designdevil.de
+    e-mail: frigi.f {at} gmail {dot} com
+
+"""
+
+
+import bpy
+from bpy.props import IntProperty
+
+def relax_mesh(self, context):
+    
+    # get active object and remember some of its mesh info
+    obj = context.active_object
+    me_old = obj.data
+    me_name = me_old.name
+
+    # deselect everything that's not related
+    for o in bpy.context.selected_objects:
+        o.selected = False
+
+    # duplicate the object so it can be used for the shrinkwrap modifier
+    obj.selected = True # make sure the object is selected!
+    bpy.ops.object.mode_set(mode='OBJECT')
+    bpy.ops.object.duplicate()
+    target = context.active_object
+    bpy.context.scene.objects.active = obj
+    
+    sw = obj.modifiers.new(type='SHRINKWRAP', name='target')
+    sw.target = target
+    
+    # run smooth operator to relax the mesh
+    bpy.ops.object.mode_set(mode='EDIT')
+    bpy.ops.mesh.vertices_smooth()
+    bpy.ops.object.mode_set(mode='OBJECT')
+
+    # apply and remove the modifier
+    me = obj.create_mesh(True, 'PREVIEW')
+    obj.data = me
+    obj.modifiers.remove(sw)
+
+    # clean up the old mesh and rename the new one
+    bpy.data.meshes.remove(me_old)
+    obj.data.name = me_name
+    
+    # delete the target object
+    obj.selected = False
+    target.selected = True
+    bpy.ops.object.delete()
+    
+    # go back to initial state
+    obj.selected = True
+    bpy.ops.object.mode_set(mode='EDIT')
+
+class Relax(bpy.types.Operator):
+    '''Relaxes selected vertices while retaining the shape as much as possible'''
+    bl_idname = 'mesh.relax'
+    bl_label = 'Relax'
+    bl_options = {'REGISTER', 'UNDO'}
+
+    iterations = IntProperty(name="Relax iterations",
+                default=1, min=0, max=10, soft_min=0, soft_max=10)
+
+    def poll(self, context):
+        obj = context.active_object
+        return (obj and obj.type == 'MESH')
+
+    def execute(self, context):
+        for i in range(0,self.properties.iterations):
+            relax_mesh(self, context)
+        return {'FINISHED'}
+
+menu_func = (lambda self, context: self.layout.operator(Relax.bl_idname, text="Relax"))
+
+def register():
+    bpy.types.register(Relax)
+    bpy.types.VIEW3D_MT_edit_mesh_specials.append(menu_func)
+    bpy.types.VIEW3D_MT_edit_mesh_vertices.append(menu_func)
+
+def unregister():
+    bpy.types.unregister(Relax)
+    bpy.types.VIEW3D_MT_edit_mesh_specials.remove(menu_func)
+    bpy.types.VIEW3D_MT_edit_mesh_vertices.remove(menu_func)
+
+if __name__ == "__main__":
+    register()
\ No newline at end of file