boxespy/boxes/generators/platonic.py

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#!/usr/bin/env python3
# Copyright (C) 2020 Norbert Szulc
#
# 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 *
from boxes.edges import FingerJointEdge
class UnevenFingerJointEdge(FingerJointEdge):
"""Uneven finger joint edge """
char = 'u'
description = "Uneven Finger Joint"
positive = True
def __call__(self, length, bedBolts=None, bedBoltSettings=None, **kw):
# copied from original
positive = self.positive
s, f, thickness = self.settings.space, self.settings.finger, self.settings.thickness
p = 1 if positive else -1
fingers, leftover = self.calcFingers(length, bedBolts)
if not positive:
play = self.settings.play
f += play
s -= play
leftover -= play
shift = (f + s) / 2 # we shift all fingers to make them un even
if (leftover < shift):
leftover = shift
self.edge((leftover + shift)/2, tabs=1) # Whole point of this class
l1,l2 = self.fingerLength(self.settings.angle)
h = l1-l2
d = (bedBoltSettings or self.bedBoltSettings)[0]
for i in range(fingers):
if i != 0:
if not positive and bedBolts and bedBolts.drawBolt(i):
self.hole(0.5 * s,
0.5 * self.settings.thickness, 0.5 * d)
if positive and bedBolts and bedBolts.drawBolt(i):
self.bedBoltHole(s, bedBoltSettings)
else:
self.edge(s)
if positive and self.settings.style == "springs":
self.polyline(
0, -90 * p, 0.8*h, (90 * p, 0.2*h),
0.1 * h, 90, 0.9*h, -180, 0.9*h, 90,
f - 0.6*h,
90, 0.9*h, -180, 0.9*h, 90, 0.1*h,
(90 * p, 0.2 *h), 0.8*h, -90 * p)
else:
self.polyline(0, -90 * p, h, 90 * p, f, 90 * p, h, -90 * p)
self.edge((leftover - shift)/2, tabs=1) # Whole point of this class
# Unstable
class UnevenFingerJointEdgeCounterPart(UnevenFingerJointEdge):
"""Uneven finger joint edge - other side"""
char = 'U'
description = "Uneven Finger Joint (opposing side)"
positive = False
class Platonic(Boxes):
"""Platonic solids generator"""
ui_group = "Unstable" # see ./__init__.py for names
description = """![Icosahedron](static/samples/Platonic-Icosahedron.jpg)
"""
SOLIDS = {
"tetrahedron": (4, 3),
"cube": (6, 4),
"octahedron": (8, 3),
"dodecahedron": (12, 5),
"icosahedro": (20, 3),
}
def __init__(self):
Boxes.__init__(self)
self.addSettingsArgs(edges.FingerJointSettings, surroundingspaces=0)
self.buildArgParser(x=60, outside=True) # x should be treated as edge length, TODO: change that
self.argparser.add_argument(
"--type", action="store", type=str, default=list(self.SOLIDS)[0],
choices=list(self.SOLIDS),
help="type of platonic solid")
def render(self):
# adjust to the variables you want in the local scope
e = self.x
t = self.thickness
faces, corners = self.SOLIDS[self.type]
u = UnevenFingerJointEdge(self, self.edges["f"].settings)
self.addPart(u)
uc = UnevenFingerJointEdgeCounterPart(self, self.edges["f"].settings)
self.addPart(uc)
for _ in range(faces):
self.regularPolygonWall(corners, side=e, edges="u", move="right")