Add EmptyMeshPlottingError

Author: PProfizi

src/ansys/dpf/core/errors.py

@@ -41,6 +41,12 @@
 ``fields_container[index]``.
 """
 
+_EMPTY_MESH_PLOTTING_MSG = """"
+The mesh support is empty. 
+Either provide one to the plot function called, or use MeshedRegion.plot 
+and provide the current data as parameter.
+"""
+
 
 class DpfValueError(ValueError):
     """Error raised when a specific DPF error value must be defined."""
@@ -80,6 +86,13 @@ def __init__(self, msg=_FIELD_CONTAINER_PLOTTING_MSG):
         ValueError.__init__(self, msg)
 
 
+class EmptyMeshPlottingError(ValueError):
+    """Error raised when attempting to plot data with no mesh."""
+
+    def __init__(self, msg=_EMPTY_MESH_PLOTTING_MSG):
+        ValueError.__init__(self, msg)
+
+
 class InvalidANSYSVersionError(RuntimeError):
     """Error raised when the Ansys version is invalid."""