mark Rprofs properties as cached

Author: amorison

src/stagpy/stagyydata.py

@@ -284,17 +284,17 @@ def _first_rprofs(self) -> step.RprofsInstant:
         first_step = next(iter(self._steps_with_rprofs))
         return first_step.rprofs
 
-    @property
+    @cached_property
     @override
     def centers(self) -> NDArray[np.float64]:
         return self._first_rprofs.centers
 
-    @property
+    @cached_property
     @override
     def walls(self) -> NDArray[np.float64]:
         return self._first_rprofs.walls
 
-    @property
+    @cached_property
     @override
     def bounds(self) -> tuple[float, float]:
         return self._first_rprofs.bounds

src/stagpy/step.py

@@ -438,17 +438,17 @@ def __getitem__(self, name: str) -> Rprof: ...
     def stepstr(self) -> str:
         """String representation of steps indices."""
 
-    @property
+    @cached_property
     @abstractmethod
     def centers(self) -> NDArray[np.float64]:
         """Radial position of cell centers."""
 
-    @property
+    @cached_property
     @abstractmethod
     def walls(self) -> NDArray[np.float64]:
         """Radial position of cell walls."""
 
-    @property
+    @cached_property
     @abstractmethod
     def bounds(self) -> tuple[float, float]:
         """Radial or vertical position of boundaries.