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