use try except

CHANGELOG.md

@@ -34,7 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Changed use of `compas.geometry.allclose` to `compas.tolerance.TOL.is_allclose`.
 * Changed use of `compas.geometry.close` to `compas.tolerance.TOL.is_close`.
 * Changed imports of itertools to `compas.itertools` instead of `compas.utilities`.
-* Updated `compas_rhino.conversions.point_to_compas` to allow for `compas.geometry.Point` as input.
+* Updated `compas_rhino.conversions.point_to_compas` to allow for `Rhino.Geometry.Point` as input.
 
 ### Removed
 

src/compas_rhino/conversions/geometry.py

@@ -3,6 +3,7 @@
 from __future__ import print_function
 
 import Rhino  # type: ignore
+from System import MissingMemberException  # type: ignore
 
 from compas.geometry import Frame
 from compas.geometry import Plane
@@ -110,12 +111,13 @@ def point_to_compas(point):
     :class:`compas.geometry.Point`
 
     """
-    if isinstance(point, Rhino.Geometry.Point3d):
+    try:
         return Point(point.X, point.Y, point.Z)
-    elif isinstance(point, Rhino.Geometry.Point):
-        return Point(point.Location.X, point.Location.Y, point.Location.Z)
-    else:
-        raise TypeError("Expected Rhino.Geometry.Point3d or Rhino.Geometry.Point., got: {}".format(type(point)))
+    except MissingMemberException:
+        try:
+            return Point(point.Location.X, point.Location.Y, point.Location.Z)
+        except MissingMemberException:
+            raise TypeError("Unexpected point type, got: {}".format(type(point)))
 
 
 def vector_to_compas(vector):