Improve mesh input of example

Author: LSchueler

examples/01_random_field/05_mesh_ensemble.py

@@ -22,10 +22,9 @@
 
 import gstools as gs
 
-# read a triangulated hexagon with meshio
-mesh_input = meshio.read("hexagon.mesh")
-points = mesh_input.points
-cells = mesh_input.cells[0].data
+# read a triangulated hexagon
+points = np.load("hexagon_points.npy")
+cells = np.load("hexagon_cells.npy")
 mesh = meshio.Mesh(points, {"triangle": cells})
 
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