object_add_chain.py

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  18
  19 bl_info = {
  20     "name": "Add Chain",
  21     "author": "Brian Hinton (Nichod)",
  22     "version": (0, 1, 1),
  23     "blender": (2, 68, 0),
  24     "location": "View3D > Add > Mesh",
  25     "description": "Adds Chain with curve guide for easy creation",
  26     "warning": "",
  27     "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"\
  28         "Scripts/Object/Add_Chain",
  29     "tracker_url": "https://projects.blender.org/tracker/index.php?"\
  30         "func=detail&aid=22203",
  31     "category": "Object"}
  32
  33 import bpy
  34
  35
  36 def Add_Chain():
  37     ##Adds Empty to scene
  38     bpy.ops.object.add(type='EMPTY',
  39                        view_align=False,
  40                        enter_editmode=False,
  41                        location=(0, 0, 0),
  42                        rotation=(0, 0, 0),
  43                        )
  44
  45     ##Changes name of Empty to rot_link adds variable emp
  46     emp = bpy.context.object
  47     emp.name = "rot_link"
  48
  49     ##Rotate emp ~ 90 degrees
  50     emp.rotation_euler = [1.570796, 0, 0]
  51
  52     ##Adds Curve Path to scene
  53     bpy.ops.curve.primitive_nurbs_path_add(view_align=False,
  54                                            enter_editmode=False,
  55                                            location=(0, 0, 0),
  56                                            rotation=(0, 0, 0),
  57                                            )
  58
  59     ##Change Curve name to deform adds variable curv
  60     curv = bpy.context.object
  61     curv.name = "deform"
  62
  63     ##Inserts Torus primitive
  64     bpy.ops.mesh.primitive_torus_add(major_radius=1,
  65                                      minor_radius=0.25,
  66                                      major_segments=12,
  67                                      minor_segments=4,
  68                                      abso_major_rad=1,
  69                                      abso_minor_rad=0.5,
  70                                      )
  71
  72     ##Positions Torus primitive to center of scene
  73     bpy.context.active_object.location = 0.0, 0.0, 0.0
  74
  75     ##Reseting Torus rotation in case of 'Align to view' option enabled
  76     bpy.context.active_object.rotation_euler = 0.0, 0.0, 0.0
  77
  78
  79     ##Changes Torus name to chain adds variable tor
  80     tor = bpy.context.object
  81     tor.name = "chain"
  82
  83     ##Adds Array Modifier to tor
  84     bpy.ops.object.modifier_add(type='ARRAY')
  85
  86     ##Adds subsurf modifier tor
  87     bpy.ops.object.modifier_add(type='SUBSURF')
  88
  89     ##Smooths tor
  90     bpy.ops.object.shade_smooth()
  91
  92     ##Select curv
  93     sce = bpy.context.scene
  94     sce.objects.active = curv
  95
  96     ##Toggle into editmode
  97     bpy.ops.object.editmode_toggle()
  98
  99     ## TODO, may be better to move objects directly.
 100     ##Translate curve object
 101     bpy.ops.transform.translate(value=(2, 0, 0),
 102                                 constraint_axis=(True, False, False),
 103                                 constraint_orientation='GLOBAL',
 104                                 mirror=False,
 105                                 proportional='DISABLED',
 106                                 proportional_edit_falloff='SMOOTH',
 107                                 proportional_size=1,
 108                                 snap=False,
 109                                 snap_target='CLOSEST',
 110                                 snap_point=(0, 0, 0),
 111                                 snap_align=False,
 112                                 snap_normal=(0, 0, 0),
 113                                 release_confirm=False,
 114                                 )
 115
 116     ##Toggle into objectmode
 117     bpy.ops.object.editmode_toggle()
 118
 119     ##Select tor or chain
 120     sce.objects.active = tor
 121
 122     ##Selects Array Modifier for editing
 123     array = tor.modifiers['Array']
 124
 125     ##Change Array Modifier Parameters
 126     array.fit_type = 'FIT_CURVE'
 127     array.curve = curv
 128     array.offset_object = emp
 129     array.use_object_offset = True
 130     array.relative_offset_displace = 0.549, 0.0, 0.0
 131
 132     ##Add curve modifier
 133     bpy.ops.object.modifier_add(type='CURVE')
 134
 135     ##Selects Curve Modifier for editing
 136     cur = tor.modifiers['Curve']
 137
 138     ##Change Curve Modifier Parameters
 139     cur.object = curv
 140
 141 #makes AddChain an operator
 142 class AddChain(bpy.types.Operator):
 143     """Add a Chain"""
 144     bl_idname = "mesh.primitive_chain_add"
 145     bl_label = "Add Chain"
 146     bl_options = {'REGISTER', 'UNDO'}
 147
 148
 149     def execute(self, context):
 150         Add_Chain()
 151
 152         return {'FINISHED'}
 153
 154 # Register the operator
 155 def menu_func(self, context):
 156     self.layout.operator(AddChain.bl_idname, text="Chain", icon='PLUGIN')
 157
 158
 159 def register():
 160     bpy.utils.register_module(__name__)
 161
 162     # Add "Chain" menu to the "Add Mesh" menu.
 163     bpy.types.INFO_MT_mesh_add.append(menu_func)
 164
 165
 166 def unregister():
 167     bpy.utils.unregister_module(__name__)
 168
 169     # Remove "Chain" menu from the "Add Mesh" menu.
 170     bpy.types.INFO_MT_mesh_add.remove(menu_func)
 171
 172 if __name__ == "__main__":
 173     register()