boxespy/boxes/generators/rack19box.py

#!/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 *


class Rack19Box(Boxes):
    """Closed box with screw on top for mounting in a 19" rack."""

    ui_group = "Box"

    def __init__(self):
        Boxes.__init__(self)
        self.addSettingsArgs(edges.FingerJointSettings, surroundingspaces=0.5)
        self.argparser.add_argument(
            "--depth", action="store", type=float, default=100.,
            help="inner depth in mm")
        self.argparser.add_argument(
            "--height", action="store", type=int, default=2,
            choices=list(range(1, 17)),
            help="height in rack units")
        self.argparser.add_argument(
            "--triangle", action="store", type=float, default=25.,
            help="Sides of the triangles holding the lid in mm")
        self.argparser.add_argument(
            "--d1", action="store", type=float, default=2.,
            help="Diameter of the inner lid screw holes in mm")
        self.argparser.add_argument(
            "--d2", action="store", type=float, default=3.,
            help="Diameter of the lid screw holes in mm")

    def wallxCB(self):
        t = self.thickness
        self.fingerHolesAt(0, self.h-1.5*t, self.triangle, 0)
        self.fingerHolesAt(self.x, self.h-1.5*t, self.triangle, 180)
        
    def wallxfCB(self): # front
        t = self.thickness
        for x in (8.5, self.x+2*17.+2*t-8.5):
            for y in (6., self.h-6.+t):
                self.rectangularHole(x, y, 10, 6.5, r=3.25)
        
        self.moveTo(t+17., t)
        self.wallxCB()
        
    def wallyCB(self):
        t = self.thickness
        self.fingerHolesAt(0, self.h-1.5*t, self.triangle, 0)
        self.fingerHolesAt(self.y, self.h-1.5*t, self.triangle, 180)
        
        
    def _render(self, type):
        self.open()

        t = self.thickness
        self.h = h = self.height * 44.45 - 0.787 - t
        if type == 10:
            self.x = 219.0 - 2*t
        else:
            self.x = 448.0 - 2*t
        x = self.x
        y = self.y = self.depth

        d1, d2 =self.d1, self.d2
        tr = self.triangle
        trh = tr / 3.

        self.rectangularWall(y, h, "ffef", callback=[self.wallyCB], move="right")
        self.rectangularWall(x, h, "fFeF", callback=[self.wallxCB],
                             move="up")
        self.flangedWall(x, h, "FFeF", callback=[self.wallxfCB], r=t,
                         flanges=[0., 17., -t, 17.])
        self.rectangularWall(y, h, "ffef", callback=[self.wallyCB],
                             move="left up")

        self.rectangularWall(x, y, "fFFF", move="right")
        self.rectangularWall(x, y, callback=[
            lambda:self.hole(trh, trh, d=d2)] * 4, move='up')

        self.rectangularTriangle(tr, tr, "ffe", num=4,
            callback=[None, lambda: self.hole(trh, trh, d=d1)])

        self.close()

    def render(self):
        self._render(type=19)