boxespy/boxes/generators/flexbox3.py

172 lines
5.5 KiB
Python
Executable File

#!/usr/bin/env python3
# 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/>.
from boxes import *
import math
class FlexBox3(Boxes):
"""Box with living hinge"""
ui_group = "FlexBox"
def __init__(self):
Boxes.__init__(self)
self.addSettingsArgs(edges.FingerJointSettings, surroundingspaces=1)
self.addSettingsArgs(edges.FlexSettings)
self.buildArgParser("x", "y", "outside")
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")
def rectangleCorner(self, edge1=None, edge2=None):
edge1 = self.edges.get(edge1, edge1)
edge2 = self.edges.get(edge2, edge2)
if edge2:
self.edge(edge2.startwidth())
self.corner(90)
if edge1:
self.edge(edge1.endwidth())
@restore
def flexBoxSide(self, x, y, r, callback=None):
self.cc(callback, 0)
self.edges["f"](x)
self.corner(90, 0)
self.cc(callback, 1)
self.edges["f"](y - r)
self.corner(90, r)
self.cc(callback, 2)
self.edge(x - r)
self.corner(90, 0)
self.cc(callback, 3)
self.edges["f"](y)
self.corner(90)
def surroundingWall(self):
x, y, z, r, d = self.x, self.y, self.z, self.radius, self.d
self.edges["F"](y - r, False)
self.edges["X"](self.c4, z + 2 * self.thickness)
self.corner(-90)
self.edge(d)
self.corner(90)
self.edges["f"](x - r + d)
self.corner(90)
self.edges["f"](z + 2 * self.thickness + 2 * d)
self.corner(90)
self.edges["f"](x - r + d)
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
t = self.thickness
r2 = r + t if r + t <= h + t else h + t
self.moveTo(self.thickness, 0)
if r < h:
r2 = r + t
self.edge(h + self.thickness - r2)
self.corner(90, r2)
self.edge(r - r2 + 2 * t)
base_l = x + 2 * t
else:
a = math.acos((r-h)/(r+t))
ang = math.degrees(a)
base_l = x + (r+t) * math.sin(a) - r
self.corner(90-ang)
self.corner(ang, r+t)
self.edges["F"](x - r)
self.rectangleCorner("F", "f")
self.edges["g"](h)
self.rectangleCorner("f", "e")
self.edge(base_l)
self.corner(90)
def render(self):
if self.outside:
self.x = self.adjustSize(self.x)
self.y = self.adjustSize(self.y)
self.z = self.adjustSize(self.z)
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()
s = edges.FingerJointSettings(self.thickness, finger=1.,
space=1., surroundingspaces=1)
s.edgeObjects(self, "gGH")
self.moveTo(2 * self.thickness, self.thickness + 2 * d)
self.ctx.save()
self.surroundingWall()
self.moveTo(x + y - 2 * r + self.c4 + 2 * 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")
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)
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")
self.close()
def main():
b = FlexBox3() # 100, 40, 100, r=20, h=10, thickness=4.0)
b.parseArgs()
b.render()
if __name__ == "__main__":
main()