Add support for a bayonet mount lid to the RegularBox

Adjust BayonetBox to make the pieces usable from outside

boxes/generators/bayonetbox.py

@@ -33,6 +33,29 @@ class BayonetBox(Boxes):
             help="number of locking lugs")
         self.buildArgParser("outside")
 
+    def lowerLayer(self, asPart=False, move=None):
+        d = self.diameter
+        r = d / 2
+        t = self.thickness
+        p = 0.05*t
+        l = self.lugs
+
+        a = 180 / l
+
+        if asPart:
+            if self.move(d, d, move, True):
+                return
+            self.moveTo(d/2, d/2)
+        
+        self.hole(0, 0, r=d/2 - 2.5*t)
+        self.moveTo(d/2 - 1.5*t, 0, -90)
+
+        for i in range(l):
+            self.polyline(0, (-4/3*a, r-1.5*t), 0, 90, 0.5*t, -90, 0, (-2/3*a, r-t), 0, -90, 0.5*t, 90)
+
+        if asPart:
+            self.move(d, d, move)
+
     def lowerCB(self):
         d = self.diameter
         r = d / 2
@@ -42,14 +65,10 @@ class BayonetBox(Boxes):
 
         a = 180 / l
 
-        self.hole(0, 0, r=d/2 - 2.5*t)
-        self.moveTo(d/2 - 1.5*t, 0, -90)
-
-        for i in range(l):
-            self.polyline(0, (-4/3*a, r-1.5*t), 0, 90, 0.5*t, -90, 0, (-2/3*a, r-t), 0, -90, 0.5*t, 90)
-
-        self.moveTo(0, p)
+        with self.saved_context():
+            self.lowerLayer()
 
+        self.moveTo(d/2 - 1.5*t+p, 0, -90)
         for i in range(l):
             self.polyline(0, (-2/3*a, r-1.5*t+p), 0, 90, 0.5*t, -90, 0, (-4/3*a, r-t+p), 0, -90, 0.5*t, 90)
 

boxes/generators/regularbox.py

@@ -15,9 +15,10 @@
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from boxes import *
+from boxes.generators.bayonetbox import BayonetBox
 import copy
 
-class RegularBox(Boxes):
+class RegularBox(BayonetBox):
     """Box with regular polygon as base"""
 
     ui_group = "Box"
@@ -34,9 +35,11 @@ class RegularBox(Boxes):
             help="number of sides")
         self.argparser.add_argument(
             "--top",  action="store", type=str, default="none",
-            choices=["none", "hole", "angled hole", "angled lid", "angled lid2", "round lid"],
+            choices=["none", "hole", "angled hole", "angled lid", "angled lid2", "round lid", "bayonet mount"],
             help="style of the top and lid")
 
+        self.lugs=6
+
     def render(self):
 
         r, h, n = self.radius, self.h, self.n
@@ -74,12 +77,18 @@ class RegularBox(Boxes):
                                         hole=(sh-t)*2)
             if self.top == "round lid":
                 self.parts.disc(sh*2, move="right")
+            if self.top == "bayonet mount":
+                self.diameter = 2*sh
+                self.lowerLayer(asPart=True, move="right")
+                self.regularPolygonWall(corners=n, r=r, edges='F',
+                                        callback=[self.upperCB], move="right")
+                self.parts.disc(sh*2, move="right")
 
         self.regularPolygonWall(corners=n, r=r, edges='F', move="up only")
 
         side = 2 * math.sin(math.radians(180.0/n)) * r
         fingers = self.top in ("hole", "angled hole", "round lid",
-                               "angled lid2")
+                               "angled lid2", "bayonet mount")
         
         if n % 2:
             for i in range(n):