105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
|
#!/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/>.
|
||
|
|
|
||
|
|
from boxes import *
|
||
|
|
import copy
|
||
|
|
|
||
|
|
class SlotEdge(edges.Edge):
|
||
|
|
|
||
|
|
def __call__(self, length, **kw):
|
||
|
|
t, n = self.settings.thickness, self.settings.n
|
||
|
|
r, h = self.settings.radius, self.settings.h
|
||
|
|
sh = self.settings.sh # distance side to center
|
||
|
|
|
||
|
|
li = 2 * sh * math.tan(math.radians(90/n)) # side inner 2x polygone
|
||
|
|
ls2 = t / math.tan(math.radians(180/n))
|
||
|
|
ls1 = t / math.cos(math.radians(90-(180/n)))
|
||
|
|
|
||
|
|
lo = (length-li-2*ls1)/2
|
||
|
|
|
||
|
|
li = li - 2*ls2 # correct for overlap of wall
|
||
|
|
|
||
|
|
d = h/2
|
||
|
|
|
||
|
|
if li > 0:
|
||
|
|
poly = [lo-1, (90, 1), d+t-1, -90, ls1+ls2, -90, d-t, (90, t)]
|
||
|
|
self.polyline(*(poly + [li-2*t] + list(reversed(poly))))
|
||
|
|
|
||
|
|
def startwidth(self):
|
||
|
|
return self.settings.thickness
|
||
|
|
|
||
|
|
|
||
|
|
class RegularStarBox(Boxes):
|
||
|
|
"""Regular polygon boxes that form a star when closed"""
|
||
|
|
|
||
|
|
ui_group = "Box"
|
||
|
|
|
||
|
|
|
||
|
|
description = """"""
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
Boxes.__init__(self)
|
||
|
|
self.addSettingsArgs(edges.FingerJointSettings)
|
||
|
|
self.buildArgParser("h", "outside")
|
||
|
|
self.argparser.add_argument(
|
||
|
|
"--radius", action="store", type=float, default=50.0,
|
||
|
|
help="inner radius if the box (center to corners)")
|
||
|
|
self.argparser.add_argument(
|
||
|
|
"--n", action="store", type=int, default=5,
|
||
|
|
choices=(3, 4, 5),
|
||
|
|
help="number of sides")
|
||
|
|
|
||
|
|
def render(self):
|
||
|
|
|
||
|
|
r, h, n = self.radius, self.h, self.n
|
||
|
|
|
||
|
|
if self.outside:
|
||
|
|
self.r = r = r - self.thickness / math.cos(math.radians(360/(2*n)))
|
||
|
|
self.h = h = self.adjustSize(h)
|
||
|
|
|
||
|
|
t = self.thickness
|
||
|
|
|
||
|
|
fingerJointSettings = copy.deepcopy(self.edges["f"].settings)
|
||
|
|
fingerJointSettings.setValues(self.thickness, angle=360./n)
|
||
|
|
fingerJointSettings.edgeObjects(self, chars="gGH")
|
||
|
|
|
||
|
|
self.edges["e"] = SlotEdge(self, self)
|
||
|
|
|
||
|
|
r, sh, side = self.regularPolygon(n, radius=r)
|
||
|
|
self.sh = sh
|
||
|
|
|
||
|
|
with self.saved_context():
|
||
|
|
self.regularPolygonWall(corners=n, r=r, edges='F', move="right")
|
||
|
|
self.regularPolygonWall(corners=n, r=r, edges='F', move="right")
|
||
|
|
|
||
|
|
self.regularPolygonWall(corners=n, r=r, edges='F', move="up only")
|
||
|
|
|
||
|
|
for s in range(2):
|
||
|
|
with self.saved_context():
|
||
|
|
if n % 2:
|
||
|
|
for i in range(n):
|
||
|
|
self.rectangularWall(side, h, move="right",
|
||
|
|
edges="fgeG")
|
||
|
|
else:
|
||
|
|
for i in range(n//2):
|
||
|
|
self.rectangularWall(side, h, move="right",
|
||
|
|
edges="fGeG")
|
||
|
|
self.rectangularWall(side, h, move="right",
|
||
|
|
edges="fgeg")
|
||
|
|
|
||
|
|
self.rectangularWall(side, h, move="up only",
|
||
|
|
edges="fgeG")
|