boxespy/boxes/generators/halfbox.py

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#!/usr/bin/env python3
# Copyright (C) 2013-2016 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 *
class HalfBox(Boxes):
"""Configurable half of a box which can be: a bookend, a hanging shelf, an angle clamping jig, ..."""
description = """This can be used to create:
* a hanging shelf:
![HalfBox as hanging shelf](static/samples/HalfBox_Shelf_usage.jpg)
* an angle clamping jig:
![HalfBox as an angle clamping jig](static/samples/HalfBox_AngleJig_usage.jpg)
* a bookend:
![HalfBox as a bookend](static/samples/HalfBox_Bookend_usage.jpg)
and many more...
"""
ui_group = "Box"
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def __init__(self) -> None:
Boxes.__init__(self)
self.addSettingsArgs(edges.FingerJointSettings, finger=2.0,space=2.0)
self.addSettingsArgs(edges.MountingSettings)
self.buildArgParser(x=100, sy="50:50", h=100)
self.argparser.add_argument("--Clamping", action="store", type=boolarg, default=False, help="add clamping holes")
self.argparser.add_argument("--ClampingSize", action="store", type=float, default=25.0, help="diameter of clamping holes")
self.argparser.add_argument("--Mounting", action="store", type=boolarg, default=False, help="add mounting holes")
self.argparser.add_argument("--Sturdy", action="store", type=boolarg, default=False, help="create sturdy construction (e.g. shelf, clamping jig, ...)")
def polygonWallExt(self, borders, edge="f", turtle=False, callback=None, move=None):
# extended polygon wall.
# same as polygonWall, but with extended border parameters
# each border dataset consists of
# length
# turn angle
# radius of turn (without radius correction)
# edge type
for i in range(0, len(borders), 4):
self.cc(callback, i)
length = borders[i]
next_angle = borders[i+1]
next_radius = borders[i+2]
next_edge = borders[i+3]
e = self.edges.get(next_edge, next_edge)
if i == 0:
self.moveTo(0,e.margin(),0)
e(length)
if self.debug:
self.hole(0, 0, 1, color=Color.ANNOTATIONS)
self.corner(next_angle, tabs=0, radius=next_radius)
def xHoles(self):
posy = -0.5 * self.thickness
for y in self.sy[:-1]:
posy += y + self.thickness
self.fingerHolesAt(posy, 0, self.x)
def hHoles(self):
posy = -0.5 * self.thickness
for y in reversed(self.sy[1:]):
posy += y + self.thickness
self.fingerHolesAt(posy, 0, self.h)
def render(self):
# adjust to the variables you want in the local scope
x, h = self.x, self.h
d = self.ClampingSize
t = self.thickness
# triangle with sides: x (horizontal), h (upwards) and l
# angles: 90° between x & h
# b between h & l
# c between l & x
l = math.sqrt(x * x + h * h)
b = math.degrees(math.asin(x / l))
c = math.degrees(math.asin(h / l))
if x > h:
if 90 + b + c < 179:
b = 180 - b
else:
if 90 + b + c < 179:
c = 180 - c
# small triangle top: 2*t, h1, l1
h1 = (2*t)/x*h
l1 = (2*t)/x*l
# small triangle left: x2, 2*t, l2
x2 = (2*t)/h*x
l2 = (2*t)/h*l
# render your parts here
if self.Sturdy:
width = sum(self.sy) + (len(self.sy) - 1) * t
self.rectangularWall(x, width, "fffe", callback=[None, self.xHoles, None, None], move="right", label="bottom")
self.rectangularWall(h, width, "fGfF" if self.Mounting else "fefF", callback=[None, None, None, self.hHoles], move="up", label="back")
self.rectangularWall(x, width, "fffe", callback=[None, self.xHoles, None, None], move="left only", label="invisible")
for i in range(2):
self.move(x+x2+2*t + self.edges["f"].margin(), h+h1+2*t + self.edges["f"].margin(), "right", True, label="side " + str(i))
self.polygonWallExt(borders=[x2, 0, 0, "e", x, 0, 0, "h",2*t, 90, 0, "e", 2*t, 0, 0, "e", h, 0, 0, "h",h1, 180-b, 0, "e", l+l1+l2, 180-c, 0, "e"])
if self.Clamping:
self.hole(0, 0, 1, color=Color.ANNOTATIONS)
self.rectangularHole(x/2+x2,2*t+d/2,dx=d,dy=d,r=d/8)
self.rectangularHole((x+x2+2*t)-2*t-d/2,h/2+2*t,dx=d,dy=d,r=d/8)
self.move(x+x2+2*t + self.edges["f"].margin(), h+h1+2*t + self.edges["f"].margin(), "right", False, label="side " + str(i))
if len(self.sy) > 1:
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for i in range(len(self.sy) - 1):
self.move(x + self.edges["f"].margin(), h + self.edges["f"].margin(), "right", True, label="support " + str(i))
self.polygonWallExt(borders=[x, 90, 0, "f", h, 180-b, 0, "f", l, 180-c, 0, "e"])
if self.Clamping:
self.rectangularHole(x/2,d/2-t/2,dx=d,dy=d+t,r=d/8)
self.rectangularHole(x-d/2+t/2,h/2,dx=d+t,dy=d,r=d/8)
self.move(x + self.edges["f"].margin(), h + self.edges["f"].margin(), "right", False, label="support " + str(i))
else:
self.sy.insert(0,0)
self.sy.append(0)
width = sum(self.sy) + (len(self.sy) - 1) * t
self.rectangularWall(x, width, "efee", callback=[None, self.xHoles, None, None], move="right", label="bottom")
self.rectangularWall(h, width, "eGeF" if self.Mounting else "eeeF", callback=[None, None, None, self.hHoles], move="up", label="side")
self.rectangularWall(x, width, "efee", callback=[None, self.xHoles, None, None], move="left only", label="invisible")
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for i in range(len(self.sy) - 1):
self.move(x + self.edges["f"].margin(), h + self.edges["f"].margin(), "right", True, label="support " + str(i))
self.polygonWallExt(borders=[x, 90, 0, "f", h, 180-b, 0, "f", l, 180-c, 0, "e"])
if self.Clamping:
self.rectangularHole(x/2,d/2,dx=d,dy=d,r=d/8)
self.rectangularHole(x-d/2,h/2,dx=d,dy=d,r=d/8)
self.move(x + self.edges["f"].margin(), h + self.edges["f"].margin(), "right", False, label="support " + str(i))