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# add_mesh_pyramid.py (c) 2011 Phil Cote (cotejrp1)
#
# ***** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ***** END GPL LICENCE BLOCK *****
'''
bl_info = {
'name': 'Mesh Pyramid',
'author': 'Phil Cote, cotejrp1, (http://www.blenderaddons.com)',
'version': (0,1),
"blender": (2, 5, 7),
"api": 35853,
'location': 'View3D > Add > Mesh',
'description': 'Create an egyption-style step pyramid',
'warning': '', # used for warning icon and text in addons panel
'category': 'Add Mesh'}
'''
import bpy
from bpy.props import FloatVectorProperty, IntProperty, FloatProperty
from add_utils import AddObjectHelper, add_object_data
from mathutils import Vector
def makePyramid( initialSize, stepHeight, stepWidth, numberSteps ):
vertList = []
faceList = []
curSize = initialSize # how large each step will be overall
# b = buttom, t = top, f = front, b = back, l = left, r = right
x = y = z = 0
voffset = 0 # refers relative vert indices to help make faces fo each step
sn = 0 # step number
while sn < numberSteps:
# bottom verts for this iteration
bfl = (x,y,z)
bfr = (x+curSize, y, z)
bbl = (x,y+curSize,z)
bbr = (x+curSize, y+curSize, z)
# top verts for this iteration.
tfl = (x,y,z+stepHeight)
tfr = (x+curSize, y, z+stepHeight)
tbl = (x,y+curSize,z+stepHeight)
tbr = (x+curSize, y+curSize, z+stepHeight)
# add to the vert buffer
vertList.extend( ( bfl, bfr, bbl, bbr, tfl, tfr, tbl, tbr, ) )
# side faces
faceList.extend( ( ( voffset+4, voffset+5, voffset+1, voffset+0 ), ) )# front
faceList.extend( ( ( voffset+6, voffset+7, voffset+3, voffset+2 ), ) )# back
faceList.extend( ( ( voffset+2, voffset+6, voffset+4, voffset+0 ), ) ) # left
faceList.extend( ( ( voffset+3, voffset+7, voffset+5, voffset+1 ), ) ) # right
# horizontal connecting faces ( note: not applicable for the first iteration ).
if voffset > 0:
faceList.extend( ( (voffset-4, voffset-3, voffset+1, voffset+0 ), ) ) # connector front
faceList.extend( ( (voffset-2, voffset-1, voffset+3, voffset+2 ), ) ) # back
faceList.extend( ( (voffset-4, voffset-2, voffset+2, voffset+0 ), ) ) # left
faceList.extend( ( (voffset-3, voffset-1, voffset+3, voffset+1 ), ) ) # right
# set up parameters for the next iteration
curSize = curSize - ( stepWidth * 2 )
x = x + stepWidth
y = y + stepWidth
z = z + stepHeight
sn = sn + 1
voffset = voffset + 8
# cap the top.
voffset = voffset - 8 # corrects for the unnecessary voffset change done final iteration
faceList.extend( ( (voffset+6, voffset+7, voffset+5, voffset+4), ) )
# cap the bottom.
faceList.extend( ( ( 2, 3, 1, 0), ) )
return vertList, faceList
def add_pyramid_object( self, context ):
verts, faces = makePyramid( self.initialSize, self.stepHeight, self.stepWidth, self.numberSteps )
mesh_data = bpy.data.meshes.new( name = "Pyramid" )
mesh_data.from_pydata( verts, [], faces )
mesh_data.update()
res = add_object_data( context, mesh_data, operator=self )
class OBJECT_OT_add_pyramid(bpy.types.Operator, AddObjectHelper):
"""Add a Mesh Object"""
bl_idname = "mesh.primative_step_pyramid_add"
bl_label = "Pyramid"
bl_description = "Create a Pyramid Mesh"
bl_options = {'REGISTER', 'UNDO'}
initialSize = FloatProperty( name="Initial Size", default=2.0, min=0.0, max=20.0 )
stepHeight= FloatProperty( name="Step Height", default=0.2, min=0.0, max=10.0 )
stepWidth= FloatProperty( name="Step Width", default=0.2, min=0.0, max=10.0 )
numberSteps= IntProperty( name="Number Steps", default=5, min=1, max=20 )
def execute(self, context):
add_pyramid_object(self, context)
return {'FINISHED'}
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