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spiral_stair06.py
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spiral_stair06.py
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#!BPY
# -*- coding: latin-1 -*-
"""
Name: '_Spiral Stair_248'
Blender: 248
Group: 'Add'
Tooltip: 'creates a spiral staircase'
"""
__author__ = "ahmet öztürk"
__url__ = ("http://wiki.blender.org/index.php/Extensions:Py/Scripts/Manual/Add/Spiral_Stair","my homepage, http://blhps.dizayn.de",)
__version__ = "0.6"
__bpydoc__ = """Description: creates a spiral staircase according to parameters.
Usage: all controls are self-explanatory.
Notes: currently, script only draws a circle instead of a central pole which, then, can be extruded to get the desired pole. more to come..
"""
# --------------------------------------------------------------------------
# ***** 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 LICENCE BLOCK *****
# --------------------------------------------------------------------------
import Blender
from Blender import Draw, BGL
import math
from math import *
def createStairCase():
# INTERNAL VARIABLES
treadDepth = totAngle*radius/stepCount
p = Blender.Window.GetCursorPos()
# CENTER POLE
if poleRadius != 0:
pole = Blender.NMesh.GetRaw()
v = Blender.NMesh.Vert(0.0,0.0,0.0)
pole.verts.append(v)
for n in range(8):
v = Blender.NMesh.Vert(poleRadius*sin(n*2*pi/8), poleRadius*cos(n*2*pi/8), 0.0)
pole.verts.append(v)
for n in range (7):
f = Blender.NMesh.Face()
f.v.append(pole.verts[0])
f.v.append(pole.verts[n+1])
f.v.append(pole.verts[n+2])
pole.faces.append(f)
f = Blender.NMesh.Face()
f.v.append(pole.verts[0])
f.v.append(pole.verts[8])
f.v.append(pole.verts[1])
pole.faces.append(f)
Blender.NMesh.PutRaw(pole, "staircase", 1)
obj = Blender.Object.GetSelected()[0]
obj.loc = p
# TREADS
tread = Blender.NMesh.GetRaw()
v = Blender.NMesh.Vert(0.0,0.0,0.0)
tread.verts.append(v)
v = Blender.NMesh.Vert(radius,treadDepth/2,0.0)
tread.verts.append(v)
v = Blender.NMesh.Vert(radius,-treadDepth/2,0.0)
tread.verts.append(v)
v = Blender.NMesh.Vert(0.0,0.0,treadThickness)
tread.verts.append(v)
v = Blender.NMesh.Vert(radius,treadDepth/2,treadThickness)
tread.verts.append(v)
v = Blender.NMesh.Vert(radius,-treadDepth/2,treadThickness)
tread.verts.append(v)
# bottom face
f = Blender.NMesh.Face()
f.v.append(tread.verts[0])
f.v.append(tread.verts[1])
f.v.append(tread.verts[2])
tread.faces.append(f)
# top face
f = Blender.NMesh.Face()
f.v.append(tread.verts[3])
f.v.append(tread.verts[4])
f.v.append(tread.verts[5])
tread.faces.append(f)
# face
f = Blender.NMesh.Face()
f.v.append(tread.verts[0])
f.v.append(tread.verts[1])
f.v.append(tread.verts[4])
f.v.append(tread.verts[3])
tread.faces.append(f)
# face
f = Blender.NMesh.Face()
f.v.append(tread.verts[1])
f.v.append(tread.verts[2])
f.v.append(tread.verts[5])
f.v.append(tread.verts[4])
tread.faces.append(f)
# face
f = Blender.NMesh.Face()
f.v.append(tread.verts[0])
f.v.append(tread.verts[2])
f.v.append(tread.verts[5])
f.v.append(tread.verts[3])
tread.faces.append(f)
Blender.NMesh.PutRaw(tread, "tread.01", 1)
# todo: center new ?
obj = Blender.Object.GetSelected()[0]
obj.loc = p
for i in range(stepCount):
Blender.Object.Duplicate()
objlist = Blender.Object.GetSelected()
obj = objlist[0]
obj.LocZ += totHeight/stepCount
obj.RotZ += totAngle/stepCount
# HANDRAIL
c = Blender.Curve.New('handrail')
sc = Blender.Scene.getCurrent()
ob = Blender.Object.New('Curve')
ob.link(c)
sc.link(ob)
for i in range(stepCount+2):
pt = [radius*cos(i*totAngle/stepCount), radius*sin(i*totAngle/stepCount), i*totHeight/stepCount, 1.0]
c.appendNurb(pt)
c[0].append(pt)
ob.loc = p
ob.LocZ += sliderHNDRLHEIGHT.val
c.setExt1(0)
#c.setExt2(.05)
c.setExt2(sliderHNDRLTHCKNS.val)
c.setFlag(0)
c.setBevresol(3)
Blender.Redraw()
EVT_BTN_CRE = 1
EVT_NUM_RSC = 2
EVT_SLI_RSH = 3
EVT_SLI_ANG = 4
EVT_SLI_HND = 5
EVT_SLI_RAD = 6
EVT_SLI_HNDTCK = 7
EVT_SLI_POLRAD = 8
EVT_SLI_TRETCK = 9
EVT_MNU_MTD = 10
def event(evt, val):
if evt == Draw.ESCKEY:
Draw.Exit()
return
def button_event(evt):
global stepCount, totAngle, totHeight, radius, poleRadius, treadThickness
if evt == EVT_BTN_CRE:
totAngle = sliderANGLE.val / 180 * pi
stepCount = numberSTEPCOUNT.val
totHeight = sliderTOTALHEIGHT.val
radius = sliderRADIUS.val
poleRadius = sliderPOLERADIUS.val
treadThickness = sliderTREADTHCKNS.val
createStairCase()
elif evt == EVT_NUM_RSC:
stepCount = numberSTEPCOUNT.val
elif evt == EVT_SLI_ANG:
totAngle = sliderANGLE.val / 180 * pi
elif evt == EVT_SLI_RSH:
totHeight = sliderTOTALHEIGHT.val
elif evt == EVT_SLI_RAD:
radius = sliderRADIUS.val
elif evt == EVT_SLI_HNDTCK:
radius = sliderHNDRLTHCKNS.val
#return
def draw_gui():
global numberSTEPCOUNT, sliderANGLE, sliderTOTALHEIGHT, sliderHNDRLHEIGHT, sliderRADIUS, sliderHNDRLTHCKNS, sliderPOLERADIUS, sliderTREADTHCKNS
Draw.PushButton ("CREATE!", EVT_BTN_CRE, 5, 5, 400, 25, "go!")
sliderTREADTHCKNS = Draw.Slider ("Tread thickness: ", EVT_SLI_TRETCK, 5, 40, 400, 25, 0.05, 0.01, 0.5, 0, "tread thickness")
sliderPOLERADIUS = Draw.Slider ("Pole radius: ", EVT_SLI_POLRAD, 5, 70, 400, 25, 0.3, 0.0, 1.0, 0, "central pole radius (0 for none)")
sliderHNDRLTHCKNS = Draw.Slider ("Handrail thickness: ", EVT_SLI_HNDTCK, 5, 100, 400, 25, 0.03, 0.01, 0.1, 0, "handrail cross-sectional radius")
sliderHNDRLHEIGHT = Draw.Slider ("Handrail height: ", EVT_SLI_HND, 5, 130, 400, 25, 0.9, 0.05, 1.5, 0, "handrail height")
numberSTEPCOUNT = Draw.Number ("Step count:", EVT_NUM_RSC, 5, 170, 400, 25, 18, 0, 100, "number of steps")
sliderANGLE = Draw.Slider ("Total angle: ", EVT_SLI_ANG, 5, 200, 400, 25, 270.0, 30.0, 360.0, 0, "total angle")
sliderRADIUS = Draw.Slider ("Radius: ", EVT_SLI_RAD, 5, 230, 400, 25, 1.0, 0.5, 5.0, 0, "staricase radius")
sliderTOTALHEIGHT = Draw.Slider ("Total height: ", EVT_SLI_RSH, 5, 260, 400, 25, 3.00, 0.01, 7.00, 0, "total height")
# Draw.Menu ("Method: %t|Riser height %x1|Total height %x2", EVT_MNU_MTD, 5, 215, 400, 25, 1, "Entry method")
Draw.Register (draw_gui, event, button_event)

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