Split code into separate class files

openscad_py/circle.py

@@ -0,0 +1,35 @@
+
+from typing import Union as TUnion
+from typing import List
+import math
+
+from openscad_py.object_ import Object
+
+
+class Circle(Object):
+    """A 2D primitive, circle.
+    Creates a circle (or regular polygon) at the origin.
+    
+    See https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#circle
+    """
+
+    def __init__(self, r: float, fn: TUnion[int, None] = None):
+        self.r = r
+        self.fn = fn
+        # $fa, $fs, $fn
+
+    @classmethod
+    def triangle(cls, r):
+        """Create a regular triangle"""
+        return cls(r=r, fn=3)
+
+    @classmethod
+    def regular_polygon(cls, r, sides: int):
+        """Create a regular polygon"""
+        return cls(r=r, fn=sides)
+
+    def render(self) -> str:
+        fnstr = '' if self.fn is None else f", $fn={self.fn}"
+        return f"circle(r={self.r}{fnstr});"
+
+