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import bpy
def add_box(width, height, depth):
"""
This function takes inputs and returns vertex and face arrays.
no actual mesh data creation is done here.
"""
vertices = [1.0, 1.0, -1.0,
1.0, -1.0, -1.0,
-1.0, -1.0, -1.0,
-1.0, 1.0, -1.0,
1.0, 1.0, 1.0,
1.0, -1.0, 1.0,
-1.0, -1.0, 1.0,
-1.0, 1.0, 1.0,
]
faces = [0, 1, 2, 3,
4, 7, 6, 5,
0, 4, 5, 1,
1, 5, 6, 2,
2, 6, 7, 3,
4, 0, 3, 7,
]
# apply size
for i in range(0, len(vertices), 3):
vertices[i] *= width
vertices[i + 1] *= depth
vertices[i + 2] *= height
return vertices, faces
from bpy.props import *
class AddBox(bpy.types.Operator):
'''Add a simple box mesh'''
bl_idname = "mesh.primitive_box_add"
bl_label = "Add Box"
bl_options = {'REGISTER', 'UNDO'}
width = FloatProperty(name="Width",
description="Box Width",
default=1.0, min=0.01, max=100.0)
height = FloatProperty(name="Height",
description="Box Height",
default=1.0, min=0.01, max=100.0)
depth = FloatProperty(name="Depth",
description="Box Depth",
default=1.0, min=0.01, max=100.0)
# generic transform props
view_align = BoolProperty(name="Align to View",
default=False)
location = FloatVectorProperty(name="Location",
subtype='TRANSLATION')
rotation = FloatVectorProperty(name="Rotation",
subtype='EULER')
def execute(self, context):
verts_loc, faces = add_box(self.width,
self.height,
self.depth,
)
mesh = bpy.data.meshes.new("Box")
mesh.vertices.add(len(verts_loc) // 3)
mesh.faces.add(len(faces) // 4)
mesh.vertices.foreach_set("co", verts_loc)
mesh.faces.foreach_set("vertices_raw", faces)
mesh.update()
# add the mesh as an object into the scene with this utility module
import add_object_utils
add_object_utils.object_data_add(context, mesh, operator=self)
return {'FINISHED'}
def menu_func(self, context):
self.layout.operator(AddBox.bl_idname, icon='MESH_CUBE')
def register():
bpy.utils.register_class(AddBox)
bpy.types.INFO_MT_mesh_add.append(menu_func)
def unregister():
bpy.utils.unregister_class(AddBox)
bpy.types.INFO_MT_mesh_add.remove(menu_func)
if __name__ == "__main__":
register()
# test call
bpy.ops.mesh.primitive_box_add()
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