Source code for boxes.generators.flexbox3

#!/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


[docs]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 flexBoxSide(self, x, y, r, callback=None, move=None): t = self.thickness if self.move(x+2*t, y+t, move, True): return self.moveTo(t, t) 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) self.move(x+2*t, y+t, move) def surroundingWall(self, move=None): x, y, z, r, d = self.x, self.y, self.z, self.radius, self.d t = self.thickness tw = x + y - 2*r + self.c4 + 2*t + t th = z + 4*t + 2*d if self.move(tw, th, move, True): return self.moveTo(t, d + t) self.edges["F"](y - r, False) self.edges["X"](self.c4, z + 2 * t) self.corner(-90) self.edge(d) self.corner(90) self.edges["f"](x - r + t) self.corner(90) self.edges["f"](z + 2 * t + 2 * d) self.corner(90) self.edges["f"](x - r + t) self.corner(90) self.edge(d) self.corner(-90) self.edge(self.c4) self.edges["F"](y - r) self.corner(90) self.edge(t) self.edges["f"](z) self.edge(t) self.corner(90) self.move(tw, th, move) def lidSide(self, move=None): 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 if r < h: r2 = r + t base_l = x + 2 * t if self.move(h+t, base_l+t, move, True): return self.edge(h + self.thickness - r2) self.corner(90, r2) self.edge(r - r2 + 1 * t) else: a = math.acos((r-h)/(r+t)) ang = math.degrees(a) base_l = x + (r+t) * math.sin(a) - r + t if self.move(h+t, base_l+t, move, True): return self.corner(90-ang) self.corner(ang, r+t) self.edges["F"](x - r + t) self.edgeCorner("F", "f") self.edges["g"](h) self.edgeCorner("f", "e") self.edge(base_l) self.corner(90) self.move(h+t, base_l+t, move) 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 s = edges.FingerJointSettings(self.thickness, finger=1., space=1., surroundingspaces=1) s.edgeObjects(self, "gGH") with self.saved_context(): self.surroundingWall(move="right") self.rectangularWall(x, z, edges="FFFF", move="right") self.rectangularWall(h, z + 2 * (d + self.thickness), edges="GeGF", move="right") self.lidSide(move="right") self.lidSide(move="mirror right") self.surroundingWall(move="up only") self.flexBoxSide(x, y, r, move="right") self.flexBoxSide(x, y, r, move="mirror right") self.rectangularWall(z, y, edges="fFeF")