excluding time series

weldx/transformations/local_cs.py

@@ -757,14 +757,20 @@ def as_homogeneous_matrix(self, translation_unit: UnitLike) -> np.ndarray:
             time_dim = 1
 
         rotation = np.resize(self.orientation.data, (time_dim, 3, 3))
-        translation = np.resize(
-            self.coordinates.data.to(translation_unit).m, (time_dim, 3)
-        )
-        homogeneous_matrix = np.resize(np.identity(4), (time_dim, 4, 4))
-        homogeneous_matrix[:, :3, :3] = rotation
-        homogeneous_matrix[:, :3, 3] = translation
+        coordinates = self.coordinates
+        if not isinstance(coordinates, TimeSeries):
+            translation = np.resize(
+                coordinates.data.to(translation_unit).m, (time_dim, 3)
+            )
+            homogeneous_matrix = np.resize(np.identity(4), (time_dim, 4, 4))
+            homogeneous_matrix[:, :3, :3] = rotation
+            homogeneous_matrix[:, :3, 3] = translation
 
-        return np.squeeze(homogeneous_matrix)
+            return np.squeeze(homogeneous_matrix)
+        else:
+            raise NotImplementedError(
+                "Cannot convert LCS with `TimeSeries` coordinates to homogeneous matrix"
+            )
 
     def _interp_time_orientation(self, time: Time) -> xr.DataArray:
         """Interpolate the orientation in time."""