Add generator for Z-Beam or U-Beam

Can be a Z-Beam or a U-Beam depending on the orientation of the
pieces. With the --flanged_ubeam option, a 4th piece is added for a flange.

boxes/generators/zbeam.py

@@ -0,0 +1,65 @@
+# 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 *
+
+
+class ZBeam(Boxes):
+    """Z-Beam (or U-Beam): three pieces joined at right angles"""
+    description = """
+With the "flanged_ubeam" option, there is a fourth piece the length of "y".
+![U-Beam with flange](static/samples/ZBeam-flanged-ubeam.jpg)
+"""
+
+    ui_group = "Part"
+
+    def __init__(self) -> None:
+        Boxes.__init__(self)
+        self.argparser.add_argument(
+            "--top_edge", action="store", type=ArgparseEdgeType("Ffe"),
+            choices=list("Ffe"), default="e", help="edge type for top edge")
+        self.argparser.add_argument(
+            "--bottom_edge", action="store", type=ArgparseEdgeType("Ffe"),
+            choices=list("Ffe"), default="e", help="edge type for bottom edge")
+        self.buildArgParser("x", "y")
+        self.argparser.add_argument(
+            "--z", action="store", type=float, default=100.0,
+            help="inner depth in mm")
+        self.argparser.add_argument(
+            "--flanged_ubeam", action="store", type=boolarg, default=False,
+            help="Add a fourth piece to make a U-Beam with a flange")
+        self.buildArgParser("h", "outside")
+        self.addSettingsArgs(edges.FingerJointSettings)
+
+    def render(self):
+        x, y, z, h = self.x, self.y, self.z, self.h
+        t = self.thickness
+
+        if self.outside:
+            x = self.adjustSize(x, False)
+            y = self.adjustSize(y, False)
+            z = self.adjustSize(z, False)
+
+        self.rectangularWall(
+            x, h, self.bottom_edge + "F" + self.top_edge + "e", move="right")
+        self.rectangularWall(
+            y, h, self.bottom_edge + "f" + self.top_edge + "f", move="right")
+        if self.flanged_ubeam:
+            self.rectangularWall(
+                z, h, self.bottom_edge + "F" + self.top_edge + "F", move="right")
+            self.rectangularWall(
+                y + self.thickness, h, self.bottom_edge + "e" + self.top_edge + "f")
+        else:
+            self.rectangularWall(z, h, self.bottom_edge + "e" + self.top_edge + "F")

static/samples/samples.sha256

@@ -191,3 +191,5 @@ fec237bd76c18f1cad18a888f57299e5ff5033ab8032e7a26ea0b1259a42d150  ../static/samp
 ca53e3c8b9ba8d46ca2d6fdff24865514dde27380b409fef82f0b87ac0bada2d  ../static/samples/HobbyCase.jpg
 47910e8cf07e0339437d441b0fe270b05973317462495a7bb122bbcb779b135c  ../static/samples/WallHopper.jpg
 478769d7f422d0e47d50c7c1476b72a269f9acd03042d2d16dc0c00fa80941f6  ../static/samples/WallStackableBin.jpg
+fe3b0c23e7fb2fa4b2ede51a312794ff1a689e99af9feec7752b8ed87962f3a7  ../static/samples/ZBeam.jpg
+f8b2daab68479c4bdd59ac1da1d2cb31ab567f96bfef111fb1687d65b8233108  ../static/samples/ZBeam-flanged-ubeam.jpg