Source code for boxes.generators.burntest

#!/usr/bin/env python3
# Copyright (C) 2013-2019 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.
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#   You should have received a copy of the GNU General Public License
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from boxes import *

[docs]class BurnTest(Boxes): """Test different burn values""" description = """Set burn in the Default Settings to the lowest value to be tested. To get an idea cut a rectangle with known nominal size and measure the shrinkage due to the width of the laser cut. The burn value is half the difference of the overall size as shrinkage is occuring on both sides. You can use the reference rectangle as it is rendered without burn correction.""" ui_group = "Part" def __init__(self): Boxes.__init__(self) self.addSettingsArgs(edges.FingerJointSettings) self.buildArgParser(x=100) self.argparser.add_argument( "--step", action="store", type=float, default=0.01, help="increases in burn value between the sides") self.argparser.add_argument( "--pairs", action="store", type=int, default=2, help="number of pairs (each testing four burn values)") def render(self): x, s = self.x, self.step t = self.thickness self.moveTo(t, t) for cnt in range(self.pairs): for i in range(4): self.text("%.3fmm" % self.burn, x/2, 2*t, align="center") self.edges["f"](x) self.corner(90) self.burn += s self.burn -= 4*s self.moveTo(x+2*t+self.spacing, -t) for i in range(4): self.text("%.3fmm" % self.burn, x/2, 2*t, align="center") self.edges["F"](x) self.polyline(t, 90, t) self.burn += s self.moveTo(x+2*t+self.spacing, t)