boxespy/flexbox3.py

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#!/usr/bin/python3
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# Copyright (C) 2013-2014 Florian Festi
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
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from boxes import *
import math
class FlexBox(Boxes):
"""Box with living hinge"""
def __init__(self):
Boxes.__init__(self)
self.buildArgParser("x", "y")
self.argparser.add_argument(
"--z", action="store", type=float, default=100.0,
help="height of the box")
self.argparser.add_argument(
"--h", action="store", type=float, default=10.0,
help="height of the lid")
self.argparser.add_argument(
"--radius", action="store", type=float, default=10.0,
help="radius of the lids living hinge")
self.argparser.add_argument(
"--c", action="store", type=float, default=1.0,
dest="d", help="clearance of the lid")
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def rectangleCorner(self, edge1=None, edge2=None):
edge1 = self.edges.get(edge1, edge1)
edge2 = self.edges.get(edge2, edge2)
if edge2:
self.edge(edge2.width())
self.corner(90)
if edge1:
self.edge(edge1.width())
@restore
def flexBoxSide(self, x, y, r, callback=None):
self.cc(callback, 0)
self.fingerJointEdge(x)
self.corner(90, 0)
self.cc(callback, 1)
self.fingerJointEdge(y-r)
self.corner(90, r)
self.cc(callback, 2)
self.edge(x-r)
self.corner(90, 0)
self.cc(callback, 3)
self.fingerJointEdge(y)
self.corner(90)
def surroundingWall(self):
x, y, z, r, d = self.x, self.y, self.z, self.radius, self.d
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self.edges["F"](y-r, False)
self.flexEdge(self.c4, z+2*self.thickness)
self.corner(-90)
self.edge(d)
self.corner(90)
self.edges["f"](x-r+d)
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self.corner(90)
self.edges["f"](z+2*self.thickness+2*d)
self.corner(90)
self.edges["f"](x-r+d)
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self.corner(90)
self.edge(d)
self.corner(-90)
self.edge(self.c4)
self.edges["F"](y-r)
self.corner(90)
self.edge(self.thickness)
self.edges["f"](z)
self.edge(self.thickness)
self.corner(90)
@restore
def lidSide(self):
x, y, z, r, d, h = self.x, self.y, self.z, self.radius, self.d, self.h
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t = self.thickness
r2 = r+t if r+t <=h+t else h+t
self.moveTo(self.thickness, self.thickness)
self.edge(h+self.thickness-r2)
self.corner(90, r2)
self.edge(r-r2+2*t)
self.edges["F"](x-r)
self.rectangleCorner("F", "f")
self.edges["g"](h)
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self.rectangleCorner("f", "e")
self.edge(x+2*t)
def render(self):
x, y, z, d, h = self.x, self.y, self.z, self.d, self.h
r = self.radius = self.radius or min(x, y)/2.0
thickness = self.thickness
self.c4 = c4 = math.pi * r * 0.5 * 0.95
self.latchsize = 8*thickness
width = 2*x + y - 2*r + c4 + 14*thickness + 3*h # lock
height = y + z + 8*thickness
self.open(width, height)
self.edges["f"].settings.setValues(
self.thickness, finger=2, space=2, surroundingspaces=1)
s = FingerJointSettings(self.thickness, surroundingspaces=1)
g = FingerJointEdge(self, s)
g.char = "g"
self.addPart(g)
G = FingerJointEdgeCounterPart(self, s)
G.char = "G"
self.addPart(G)
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self.moveTo(2*self.thickness, self.thickness+2*d)
self.ctx.save()
self.surroundingWall()
self.moveTo(x+y-2*r+self.c4+self.thickness, -2*d-self.thickness)
self.rectangularWall(x, z, edges="FFFF", move="right")
self.rectangularWall(h, z+2*(d+self.thickness),
edges="GeGF", move="right")
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self.lidSide()
self.moveTo(2*h+5*self.thickness, 0)
self.ctx.scale(-1, 1)
self.lidSide()
self.ctx.restore()
self.moveTo(0, z+4*self.thickness+2*d)
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self.flexBoxSide(x, y, r)
self.moveTo(2*x+3*self.thickness, 2*d)
self.ctx.scale(-1, 1)
self.flexBoxSide(x, y, r)
self.ctx.scale(-1, 1)
self.moveTo(2*self.thickness, -self.thickness)
self.rectangularWall(z, y, edges="fFeF")
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self.close()
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def main():
b = FlexBox() #100, 40, 100, r=20, h=10, thickness=4.0)
b.parseArgs()
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b.render()
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if __name__=="__main__":
main()