Source code for boxes.generators.flexbox5

#!/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/>.

import boxes
import math


[docs]class FlexBox5(boxes.Boxes): """Box with living hinge and round corners""" ui_group = "FlexBox" def __init__(self): boxes.Boxes.__init__(self) self.addSettingsArgs(boxes.edges.FingerJointSettings) self.addSettingsArgs(boxes.edges.FlexSettings) self.buildArgParser("x", "h", "outside") self.argparser.add_argument( "--top_diameter", action="store", type=float, default=60, help="diameter at the top") self.argparser.add_argument( "--bottom_diameter", action="store", type=float, default=60, help="diameter at the bottom") self.argparser.add_argument( "--latchsize", action="store", type=float, default=8, help="size of latch in multiples of thickness") def flexBoxSide(self, callback=None, move=None): t = self.thickness r1, r2 = self.top_diameter/2., self.bottom_diameter/2 a = self.a l = self.l tw , th = l+r1+r2, 2*max(r1, r2)+2*t if self.move(tw, th, move, True): return self.moveTo(r2, t) self.cc(callback, 0) self.edges["f"](l) self.corner(180+2*a, r1) self.cc(callback, 1) self.latch(self.latchsize) self.cc(callback, 2) self.edges["f"](l - self.latchsize) self.corner(180-2*a, r2) self.move(tw, th, move) def surroundingWall(self, move=None): t = self.thickness r1, r2 = self.top_diameter/2., self.bottom_diameter/2 h = self.h a = self.a l = self.l c1 = math.radians(180+2*a) * r1 c2 = math.radians(180-2*a) * r2 tw = 2*l + c1 + c2 th = h + 2.5*t if self.move(tw, th, move, True): return self.moveTo(0, 0.25*t) self.edges["F"](l - self.latchsize, False) self.edges["X"](c2, h + 2 * t) self.edges["F"](l, False) self.edges["X"](c1, h + 2 * t) self.latch(self.latchsize, False) self.edge(h + 2 * t) self.latch(self.latchsize, False, True) self.edge(c1) self.edges["F"](l, False) self.edge(c2) self.edges["F"](l - self.latchsize, False) self.corner(90) self.edge(h + 2 * t) self.corner(90) self.move(tw, th, move) def render(self): if self.outside: self.x = self.adjustSize(self.x) self.h = self.adjustSize(self.h) self.top_diameter = self.adjustSize(self.top_diameter) self.bottom_diameter = self.adjustSize(self.bottom_diameter) t = self.thickness self.latchsize *= self.thickness d_t, d_b = self.top_diameter, self.bottom_diameter self.x = max(self.x, self.latchsize + 2*t + (d_t + d_b)/2) d_c = self.x - d_t/2. - d_b/2. self.a = math.degrees(math.asin((d_t-d_b)/2 / d_c)) self.l = d_c * math.cos(math.radians(self.a)) self.surroundingWall(move="up") self.flexBoxSide(move="right") self.flexBoxSide(move="mirror")