Source code for boxes.generators.hooks

#!/usr/bin/env python3
# Copyright (C) 2013-2018 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 Hook(Boxes): """A hook wit a rectangular mouth to mount at the wall""" ui_group = "Misc" # see ./__init__.py for names def __init__(self): Boxes.__init__(self) self.addSettingsArgs(edges.FingerJointSettings, surroundingspaces=0.5) self.argparser.add_argument("--width", action="store", type=float, default=40., help="width of the hook (back plate is a bit wider)") self.argparser.add_argument("--height", action="store", type=float, default=40., help="inner height of the hook") self.argparser.add_argument("--depth", action="store", type=float, default=40., help="inner depth of the hook") self.argparser.add_argument("--strength", action="store", type=float, default=20., help="width of the hook from the side") self.argparser.add_argument("--angle", action="store", type=float, default=45., help="angle of the support underneeth") def render(self): self.angle = min(self.angle, 80) t = self.thickness w = self.width - 2*t # inner width d, h, s = self.depth, self.height, self.strength self.rectangularWall(w + 4*t, self.height_back, 'Eeee', callback=self.back_callback, move='right') self.sidewall(d, h, s, self.angle, move='right') self.sidewall(d, h, s, self.angle, move='right') self.rectangularWall(d, w, 'FFFf', move='right') self.rectangularWall(h - t, w, 'FFFf', move='right', callback=[ lambda: self.hole((h - t)/2, w/2, d=17)]) self.rectangularWall(s-t, w, 'FeFf', move='right') def back_callback(self, n): if n != 0: return t = self.thickness h = self.h_a + self.strength self.fingerHolesAt(1.5*t, 0, h) self.fingerHolesAt(self.width + .5*t, 0, h) self.fingerHolesAt(2*t, h + t/2, self.width - 2*t, 0) x_h = self.width/2 + t y1 = h + self.height/2 y2 = self.strength/2 y3 = (y1 + y2) / 2 self.hole(x_h, y1, d=3) self.hole(x_h, y2, d=3) self.hole(x_h, y3, d=3) @property def height_back(self): return self.strength + self.height + self.h_a @property def h_a(self): return self.depth * math.tan(math.radians(self.angle)) def sidewall(self, depth, height, strength, angle=60., move=None): t = self.thickness h_a = depth * math.tan(math.radians(angle)) l_a = depth / math.cos(math.radians(angle)) f_edge = self.edges['f'] x_total = depth + strength + f_edge.margin() y_total = strength + height + h_a if self.move(x_total, y_total, move, before=True): return self.moveTo(f_edge.margin()) self.polyline(strength, angle, l_a, 90-angle, height+strength, 90) f_edge(strength - t) self.corner(90) f_edge(height - t) self.polyline(t, -90, t) f_edge(depth) self.corner(90) f_edge(h_a + strength) self.corner(90) self.move(x_total, y_total, move)