Source code for boxes.generators.bottlestack

#!/usr/bin/env python3
# Copyright (C) 2013-2020 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 *

[docs]class BottleStack(Boxes): """Stack bottles in a fridge""" description = """When rendered with the "double" option the parts with the double slots get connected the shorter beams in the asymetrical slots. Without the "double" option the stand is a bit more narrow. """ ui_group = "Misc" def __init__(self): Boxes.__init__(self) self.argparser.add_argument( "--diameter", action="store", type=float, default=80, help="diameter of the bottles in mm") self.argparser.add_argument( "--number", action="store", type=int, default=3, help="number of bottles to hold in the bottom row") self.argparser.add_argument( "--depth", action="store", type=float, default=80, help="depth of the stand along the base of the bottles") self.argparser.add_argument( "--double", action="store", type=boolarg, default=True, help="two pieces that can be combined to up to double the width") def front(self, h_sides, offset=0, move=None): t = self.thickness a = 60 nr = self.number r1 = self.diameter / 2.0 # bottle r2 = r1 / math.cos(math.radians(90-a)) - r1 # inbetween if self.double: r3 = 1.5*t # upper corners else: r3 = .5*t h = (r1+r2) * (1-math.cos(math.radians(a))) h_extra = 1*t h_s = h_sides - t p = 0.05*t # play tw, th = nr * r1 * 2 + 2*r3, h + 2*t if self.move(tw, th, move, True): return open_sides = r3 <= 0.5*t if offset == 0: slot = [0, 90, h_s, -90, t, -90, h_s, 90] if open_sides: self.moveTo(0, h_s) self.polyline(r3-0.5*t) self.polyline(*slot[4:]) else: self.polyline(r3-0.5*t) self.polyline(*slot) for i in range(nr-open_sides): self.polyline(2*r1-t) self.polyline(*slot) if open_sides: self.polyline(2*r1-t) self.polyline(*slot[:-3]) self.polyline(r3-0.5*t) else: self.polyline(r3-0.5*t) else: slot = [0, 90, h_s, -90, t, -90, h_s, 90] h_s += t slot2 = [0, 90, h_s, -90, t+2*p, -90, h_s, 90] if open_sides: self.moveTo(0, h_s) self.polyline(t+p, -90, h_s, 90) else: self.polyline(r3-0.5*t-p) self.polyline(*slot2) self.polyline(t-p) self.polyline(*slot) self.polyline(2*r1-5*t) self.polyline(*slot) self.polyline(t-p) self.polyline(*slot2) for i in range(1, nr-open_sides): self.polyline(2*r1-3*t-p) self.polyline(*slot) self.polyline(t-p) self.polyline(*slot2) if open_sides: self.polyline(2*r1-3*t-p) self.polyline(*slot) self.polyline(t-p) self.polyline(0, 90, h_s, -90, t+p) else: self.polyline(r3-0.5*t-p) if open_sides: h_extra -= h_s self.polyline(0, 90, h_extra+h-r3, (90, r3)) for i in range(nr): self.polyline(0, (a, r2), 0, (-2*a, r1), 0, (a, r2)) self.polyline(0, (90, r3), h_extra+h-r3, 90) self.move(tw, th, move) def side(self, l, h, short=False, move=None): t = self.thickness short = bool(short) tw, th = l + 2*t - 4*t*short, h if self.move(tw, th, move, True): return self.moveTo(t, 0) self.polyline(l-3*t*short) if short: end = [90, h-t, 90, t, -90, t, 90] else: end = [(90, t), h-2*t, (90, t), 0, 90, t, -90, t, -90, t, 90] self.polyline(0, *end) self.polyline(l-2*t- 3*t*short) self.polyline(0, *reversed(end)) self.move(tw, th, move) def render(self): t = self.thickness d = self.depth nr = self.number h_sides = 2*t pieces = 2 if self.double else 1 for offset in range(pieces): self.front(h_sides, offset, move="up") self.front(h_sides, offset, move="up") for short in range(pieces): for i in range(nr+1): self.side(d, h_sides, short, move="up")