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# ##### 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 LICENSE BLOCK #####
# <pep8-80 compliant>
import bpy
import Mathutils
from math import cos, sin, pi
def add_torus(major_rad, minor_rad, major_seg, minor_seg):
Vector = Mathutils.Vector
Quaternion = Mathutils.Quaternion
PI_2 = pi * 2
z_axis = (0, 0, 1)
verts = []
faces = []
i1 = 0
tot_verts = major_seg * minor_seg
for major_index in range(major_seg):
quat = Quaternion(z_axis, (major_index / major_seg) * PI_2)
for minor_index in range(minor_seg):
angle = 2 * pi * minor_index / minor_seg
vec = Vector(major_rad + (cos(angle) * minor_rad), 0.0,
(sin(angle) * minor_rad)) * quat
verts.extend([vec.x, vec.y, vec.z])
if minor_index + 1 == minor_seg:
i2 = (major_index) * minor_seg
i3 = i1 + minor_seg
i4 = i2 + minor_seg
else:
i2 = i1 + 1
i3 = i1 + minor_seg
i4 = i3 + 1
if i2 >= tot_verts:
i2 = i2 - tot_verts
if i3 >= tot_verts:
i3 = i3 - tot_verts
if i4 >= tot_verts:
i4 = i4 - tot_verts
# stupid eekadoodle
if i2:
faces.extend([i1, i3, i4, i2])
else:
faces.extend([i2, i1, i3, i4])
i1 += 1
return verts, faces
from bpy.props import *
class AddTorus(bpy.types.Operator):
'''Add a torus mesh.'''
bl_idname = "mesh.primitive_torus_add"
bl_label = "Add Torus"
bl_register = True
bl_undo = True
major_radius = FloatProperty(name="Major Radius",
description="Number of segments for the main ring of the torus",
default=1.0, min=0.01, max=100.0)
minor_radius = FloatProperty(name="Minor Radius",
description="Number of segments for the minor ring of the torus",
default=0.25, min=0.01, max=100.0)
major_segments = IntProperty(name="Major Segments",
description="Number of segments for the main ring of the torus",
default=48, min=3, max=256)
minor_segments = IntProperty(name="Minor Segments",
description="Number of segments for the minor ring of the torus",
default=16, min=3, max=256)
def execute(self, context):
verts_loc, faces = add_torus(self.properties.major_radius,
self.properties.minor_radius,
self.properties.major_segments,
self.properties.minor_segments)
mesh = bpy.data.add_mesh("Torus")
mesh.add_geometry(int(len(verts_loc) / 3), 0, int(len(faces) / 4))
mesh.verts.foreach_set("co", verts_loc)
mesh.faces.foreach_set("verts_raw", faces)
scene = context.scene
# ugh
for ob in scene.objects:
ob.selected = False
mesh.update()
ob_new = bpy.data.add_object('MESH', "Torus")
ob_new.data = mesh
scene.objects.link(ob_new)
scene.objects.active = ob_new
ob_new.selected = True
ob_new.location = tuple(context.scene.cursor_location)
return ('FINISHED',)
# Register the operator
bpy.ops.add(AddTorus)
# Add to a menu
import dynamic_menu
menu_func = (lambda self, context: self.layout.operator(AddTorus.bl_idname,
text="Torus", icon='MESH_DONUT'))
menu_item = dynamic_menu.add(bpy.types.INFO_MT_mesh_add, menu_func)
if __name__ == "__main__":
bpy.ops.mesh.primitive_torus_add()
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