Tweak streamplot plot_types example.

anntzer · anntzer · commit 8111326d472f · 2021-09-19T14:01:52.000+02:00
- zorders don't need to be explicitly set, the contour is already below
  the streamplot.
- alpha=0.5 for the contour seems too faint IMO; fully opaque seems
  better?
diff --git a/plot_types/arrays/streamplot.py b/plot_types/arrays/streamplot.py
@@ -21,8 +21,8 @@
 # plot:
 fig, ax = plt.subplots()
 # contour stream function
-ax.contour(X, Y, Z, colors='C1', alpha=0.5, zorder=1, linewidths=3)
+ax.contour(X, Y, Z, colors='C1', linewidths=3)
 # plot stream plot
-ax.streamplot(X[1:, 1:], Y[1:, 1:], U, V, zorder=2)
+ax.streamplot(X[1:, 1:], Y[1:, 1:], U, V)
 
 plt.show()
