From fa4fd943ca115c59bb681ebf8322fd4ee2ac40ca Mon Sep 17 00:00:00 2001
From: Florian Festi <ffesti@redhat.com>
Date: Sat, 14 Jan 2017 23:11:10 +0100
Subject: [PATCH] New generator: DisplayShelf - a shelf with forward slanted
 floors

---
 boxes/generators/displayshelf.py | 85 ++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 boxes/generators/displayshelf.py

diff --git a/boxes/generators/displayshelf.py b/boxes/generators/displayshelf.py
new file mode 100644
index 0000000..a77d22c
--- /dev/null
+++ b/boxes/generators/displayshelf.py
@@ -0,0 +1,85 @@
+#!/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 DisplayShelf(Boxes): # change class name here and below
+    """Shelf with forward slanted floors"""
+    
+    def __init__(self):
+        Boxes.__init__(self)
+
+        self.addSettingsArgs(edges.FingerJointSettings)
+
+        self.buildArgParser("x", "y", "h", "outside")
+        self.argparser.add_argument(
+            "--num",  action="store", type=int, default=3,
+            help="number of shelves")
+        self.argparser.add_argument(
+            "--front",  action="store", type=float, default=20.0,
+            help="height of front walls")
+        self.argparser.add_argument(
+            "--angle",  action="store", type=float, default=30.0,
+            help="angle of floors")
+
+    def side(self):
+
+        t = self.thickness
+        a = math.radians(self.angle)
+                
+        hs = (self.sl+t) * math.sin(a) + math.cos(a) * t
+
+        for i in range(self.num):
+            pos_x = 0.5*t*math.sin(a)
+            pos_y = hs - math.cos(a)*0.5*t + i * (self.h-hs) / (self.num - 0.5)
+            self.fingerHolesAt(pos_x, pos_y, self.sl, -self.angle)
+            pos_x += math.cos(-a) * (self.sl+0.5*t) + math.sin(a)*0.5*t
+            pos_y += math.sin(-a) * (self.sl+0.5*t) + math.cos(a)*0.5*t
+            self.fingerHolesAt(pos_x, pos_y, self.front, 90-self.angle)
+
+    def render(self):
+        # adjust to the variables you want in the local scope
+        x, y, h = self.x, self.y, self.h
+        f = self.front
+        t = self.thickness
+
+        if self.outside:
+            x = self.adjustSize(x)
+        
+        # Initialize canvas
+        self.open()
+
+        a = math.radians(self.angle)
+
+        self.sl = sl = (y - t * (math.cos(a) + math.sin(a)) - math.sin(a) * f) / math.cos(a)
+        
+        # render your parts here
+        self.rectangularWall(y, h, callback=[self.side], move="up")
+        self.rectangularWall(y, h, callback=[self.side], move="up")
+
+        for i in range(self.num):
+            self.rectangularWall(x, sl, "ffef", move="up")
+            self.rectangularWall(x, f, "Ffef", move="up")
+
+        self.close()
+
+def main():
+    b = DisplayShelf() # change to class name
+    b.parseArgs()
+    b.render()
+
+if __name__ == '__main__':
+    main()