add __eq__ for circle and line

Author: beverlylytle

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Added `divide_polyline`, `divide_polyline_by_length`, `Polyline.split_at_corners` and `Polyline.tangent_at_point_on_polyline`.
 * Added the magic method `__str__` to `compas.geoemetry.Transformation`.
 * Added `redraw` flag to the `compas_rhino` methods `delete_object`, `delete_objects` and `purge_objects`.
+* Added the `__eq__` method for `compas.geometry.Circle` and `compas.geometry.Line`.
 
 ### Changed
 

src/compas/geometry/primitives/circle.py

@@ -141,6 +141,14 @@ def __setitem__(self, key, value):
     def __iter__(self):
         return iter([self.plane, self.radius])
 
+    def __eq__(self, other):
+        try:
+            other_plane = other[0]
+            other_radius = other[1]
+        except Exception:
+            return False
+        return self.plane == other_plane and self.radius == other_radius
+
     # ==========================================================================
     # constructors
     # ==========================================================================

src/compas/geometry/primitives/line.py

@@ -144,7 +144,12 @@ def __iter__(self):
         return iter([self.start, self.end])
 
     def __eq__(self, other):
-        raise NotImplementedError
+        try:
+            other_start = other[0]
+            other_end = other[1]
+        except Exception:
+            return False
+        return self.start == other_start and self.end == other_end
 
     # ==========================================================================
     # constructors