added NumElems PPS to coarsening example, added python script to plot…

… results, closes idaholab#11
rwcarlsen · Jul 23, 2016 · 949a8cc · 949a8cc
1 parent 2e1d78b
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diff --git a/examples/2d_with_coarsening/2d_with_coarsening.i b/examples/2d_with_coarsening/2d_with_coarsening.i
@@ -137,6 +137,9 @@
     type = ElementIntegralVariablePostprocessor
     variable = u
   [../]
+  [./num_elems]
+    type = NumElems
+  [../]
 []
 
 [Outputs]

diff --git a/examples/2d_with_coarsening/plot_num_elements.py b/examples/2d_with_coarsening/plot_num_elements.py
@@ -0,0 +1,10 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+data=np.loadtxt('2d_with_coarsening_out.csv', delimiter=',', skiprows=1)
+
+plt.plot(data[:,0], data[:,3], 'r-o')
+plt.xlabel('time')
+plt.ylabel('number of elements')
+
+plt.show()