From 941676d2b766ed629c2251b475974feb0ff9a88f Mon Sep 17 00:00:00 2001
From: Florian Festi <florian@festi.info>
Date: Tue, 21 Nov 2017 20:55:08 +0100
Subject: [PATCH] New generator: Stachel - an end pin for bass recorders

---
 boxes/generators/stachel.py | 113 ++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 boxes/generators/stachel.py

diff --git a/boxes/generators/stachel.py b/boxes/generators/stachel.py
new file mode 100644
index 0000000..9948590
--- /dev/null
+++ b/boxes/generators/stachel.py
@@ -0,0 +1,113 @@
+#!/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 *
+import math
+
+class Stachel(Boxes): # Change class name!
+    """Bass Recorder Endpin"""
+    
+    ui_group = "Unstable" # see ./__init__.py for names
+
+    def __init__(self):
+        Boxes.__init__(self)
+
+        # Uncomment the settings for the edge types you use
+        # use keyword args to set default values
+        # self.addSettingsArgs(edges.FingerJointSettings, finger=1.0,space=1.0)
+        # self.addSettingsArgs(edges.StackableSettings)
+        # self.addSettingsArgs(edges.HingeSettings)
+        # self.addSettingsArgs(edges.LidSettings)
+        # self.addSettingsArgs(edges.ClickSettings)
+        # self.addSettingsArgs(edges.FlexSettings)
+
+        # remove cli params you do not need
+        #self.buildArgParser(x=100, sx="3*50", y=100, sy="3*50", h=100, hi=0)
+        # Add non default cli params if needed (see argparse std lib)
+        self.argparser.add_argument(
+            "--flutediameter",  action="store", type=float, default=115.0,
+            help="DESCRIPTION")
+        self.argparser.add_argument(
+            "--polediameter",  action="store", type=float, default=25.,
+            help="DESCRIPTION")
+        self.argparser.add_argument(
+            "--wall",  action="store", type=float, default=7.,
+            help="DESCRIPTION")
+
+    def layer(self, ri, ro, rp, holes=False, move=""):
+
+        l = 20
+        tw = 2*ro + 2*rp
+        th = 2*ro + l
+        r = 2.5
+
+        
+        if self.move(tw, th, move, True):
+            return
+
+        self.moveTo(ro, r, 90)
+
+        a1 = math.degrees(math.asin(30 / ro))
+        a2 = math.degrees(math.asin(25 / ro))
+        l1 = ro*(1-math.cos(math.radians(a1)))
+        a3 = math.degrees(math.asin(1./rp))
+        print(a1, a2, a3, ro)
+        self.polyline(ro-ri+l-r, 90, 0, (-355, ri), 0, 90, ro-ri+l-r, # inside
+                      (90, r), 30-2*r, (90, r))
+        if holes: # right side main clamp
+            poly1 = [(l+l1-2)/2-r, 90, 27, -90, 2, -90, 27, 90,
+                          (l+l1-2)/2]
+            self.polyline(*poly1)
+        else:
+            self.polyline(l+l1-r)
+        self.polyline(0, -90+a1, 0 , (90-a1-a2, ro), 0, -90+a2)
+        if holes:
+            poly2 = [2*rp+15, 90, 22, -90, 2, -90, 22, 90, 10-r]
+            self.polyline(*poly2)
+        else:
+            self.polyline(25+2*rp-r)
+        self.polyline(0, (90, r), 24-r, 90, 20, 90-a3, 0, (-360+2*a3, rp), 0, 90-a3, 20, 90, 24-r, (90, r))
+        if holes:
+            self.polyline(*list(reversed(poly2)))
+        else:
+            self.polyline(25+2*rp-r)
+        self.polyline(0, -90+a2, 0, (270-a2-a1-5, ro), 0, (-90+a1))
+        if holes: # left sidemain clamp
+            self.polyline(*list(reversed(poly1)))
+        else:
+            self.polyline(l+l1-r)
+        self.polyline(0, (90, r), 30-2*r, (90, r))
+        
+        self.move(tw, th, move)
+        
+        
+
+    def render(self):
+        # adjust to the variables you want in the local scope
+        t = self.thickness
+        # Initialize canvas
+        self.open()
+
+        ri = self.flutediameter / 2.0
+        ro = ri + self.wall
+        rp = self.polediameter / 2.0
+        w = self.wall
+        self.layer(ri-20, ro, rp, move="up")
+        self.layer(ri, ro, rp, True, move="up")
+        self.layer(ri, ro, rp, move="up")
+
+        self.close()
+