add center parameter to box

src/b1scad/scad2py.py

@@ -55,11 +55,11 @@ def shape_set(self, t):
 
     @_('CUBE LPAREN vector RPAREN')
     def shape(self, p):
-        return f"self.api.box({p.vector})"
+        return f"self.api.box({p.vector}, center=False)"
 
     @_('CUBE LPAREN NUMBER RPAREN')
     def shape(self, p):
-        return f"self.api.box({p.NUMBER},{p.NUMBER},{p.NUMBER})"
+        return f"self.api.box({p.NUMBER},{p.NUMBER},{p.NUMBER}, center=False)"
 
     @_('SPHERE LPAREN NUMBER RPAREN')
     def shape(self, p):

src/pylele/api/bpy.py

@@ -93,8 +93,11 @@ def add_material(obj: bpy.types.Object, name: str, color: tuple[int, int, int]):
     def sphere(self, rad: float) -> BlenderShape:
         return BlenderBall(rad, self)
 
-    def box(self, ln: float, wth: float, ht: float) -> BlenderShape:
-        return BlenderBox(ln, wth, ht, self)
+    def box(self, ln: float, wth: float, ht: float, center: bool = True) -> BlenderShape:
+        retval = BlenderBox(ln, wth, ht, self)
+        if center:
+            return retval
+        return retval.mv(-l / 2, -wth / 2, -ht / 2)
 
     def cone_x(self, l: float, r1: float, r2: float) -> BlenderShape:
         return BlenderConeX(l, r1, r2, self).mv(l / 2, 0, 0)

src/pylele/api/cq.py

@@ -73,8 +73,11 @@ def export_best_multishapes(
     def sphere(self, rad: float) -> CQShape:
         return CQBall(rad, self)
 
-    def box(self, ln: float, wth: float, ht: float) -> CQShape:
-        return CQBox(ln, wth, ht, self)
+    def box(self, ln: float, wth: float, ht: float, center: bool = True) -> CQShape:
+        retval = CQBox(ln, wth, ht, self)
+        if center:
+            return retval
+        return retval.mv(ln/2,wth/2,ht/2)
 
     def cone_x(self, l: float, r1: float, r2: float) -> CQShape:
         return CQCone(l, r1, r2, (1, 0, 0), self)

src/pylele/api/mf.py

@@ -102,8 +102,8 @@ def export(self, shape: MFShape, path: Union[str, Path],fmt=".stl") -> None:
     def sphere(self, rad: float) -> MFShape:
         return MFBall(rad, self)
 
-    def box(self, l: float, wth: float, ht: float) -> MFShape:
-        return MFBox(l, wth, ht, self)
+    def box(self, l: float, wth: float, ht: float, center: bool = True) -> MFShape:
+        return MFBox(l, wth, ht, center, self)
 
     def cone_x(self, l: float, r1: float, r2: float) -> MFShape:
         return MFConeZ(l, r1, r2, None, self).rotate_y(90)
@@ -240,12 +240,14 @@ def __init__(self, rad: float, api: MFShapeAPI):
 
 
 class MFBox(MFShape):
-    def __init__(self, l: float, wth: float, ht: float, api: MFShapeAPI):
+    def __init__(self, l: float, wth: float, ht: float, center: bool, api: MFShapeAPI ):
         super().__init__(api)
         self.ln = l
         self.wth = wth
         self.ht = ht
-        self.solid = Manifold.cube((l, wth, ht)).translate((-l / 2, -wth / 2, -ht / 2))
+        self.solid = Manifold.cube((l, wth, ht))
+        if center:
+            self.solid = self.solid.translate((-l / 2, -wth / 2, -ht / 2))
 
 
 class MFConeZ(MFShape):

src/pylele/api/mock.py

@@ -29,7 +29,7 @@ def export_best(self, shape: MockShape, path: Union[str, Path]) -> None:
     def sphere(self, rad: float) -> MockShape:
         return MockShape(self)
 
-    def box(self, l: float, wth: float, ht: float) -> MockShape:
+    def box(self, l: float, wth: float, ht: float, center: bool = True) -> MockShape:
         return MockShape(self)
 
     def cone_x(self, l: float, r1: float, r2: float) -> MockShape:

src/pylele/api/sp2.py

@@ -71,8 +71,11 @@ def export_scad(self, shape: Sp2Shape, path: Union[str, Path]) -> str:
     def sphere(self, rad: float) -> Sp2Shape:
         return Sp2Ball(rad, self)
 
-    def box(self, l: float, wth: float, ht: float) -> Sp2Shape:
-        return Sp2Box(l, wth, ht, self).mv(-l / 2, -wth / 2, -ht / 2)
+    def box(self, l: float, wth: float, ht: float, center: bool = True) -> Sp2Shape:
+        retval = Sp2Box(l, wth, ht, self).
+        if center:
+            return retval.mv(-l / 2, -wth / 2, -ht / 2)
+        return retval
 
     def cone_x(self, l: float, r1: float, r2: float) -> Sp2Shape:
         return Sp2Cone(l, r1, r2, direction="X", sides=None, api=self).mv(l / 2, 0, 0)

src/pylele/api/tm.py

@@ -75,8 +75,11 @@ def export_best_multishapes(
     def sphere(self, rad: float) -> TMShape:
         return TMBall(rad, self)
 
-    def box(self, l: float, wth: float, ht: float) -> TMShape:
-        return TMBox(l, wth, ht, self)
+    def box(self, l: float, wth: float, ht: float, center: bool = True) -> TMShape:
+        retval = TMBox(l, wth, ht, self)
+        if center:
+            return retval    
+        return retval.mv(-l / 2, -wth / 2, -ht / 2)        
 
     def cone_x(self, l: float, r1: float, r2: float) -> TMShape:
         return TMCone(l, r1, r2, None, self.rotZtoX, self)