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Author: lachlangrose

LoopStructural/datatypes/_structured_grid.py

@@ -61,7 +61,7 @@ def maximum(self):
         Returns
         -------
         np.ndarray
-            Maximum coordinates (origin + nsteps * step_vector)
+            Maximum coordinates (origin + (nsteps - 1) * step_vector)
         """
         return self.origin + (self.nsteps-1) * self.step_vector
 

LoopStructural/interpolators/supports/_2d_structured_grid.py

@@ -490,10 +490,15 @@ def position_to_cell_vertices(self, pos):
     def onGeometryChange(self):
         pass
 
-    def vtk(self, z=0.0, *, node_properties={}, cell_properties={}):
+    def vtk(self, node_properties=None, cell_properties=None, z=0.0):
         """
         Create a vtk unstructured grid from the mesh
         """
+        if node_properties is None:
+            node_properties = {}
+        if cell_properties is None:
+            cell_properties = {}
+
         try:
             import pyvista as pv
         except ImportError: