start to implement texenv filter for pictures

notes_tools/tools/plottings.py

@@ -61,12 +61,15 @@ def radar_graph(labels = [], values = [], optimum = []):
     N = len(labels) 
     theta = _radar_factory(N)
     max_val = max(max(optimum), max(values))
+
     fig = plt.figure(figsize=(3,3))
     ax = fig.add_subplot(1, 1, 1, projection='radar')
+
     ax.plot(theta, values, color='k')
     ax.plot(theta, optimum, color='r')
     ax.set_varlabels(labels)
-    plt.show()
+    return fig, ax
+    #plt.show()
     #plt.savefig("radar.png", dpi=100)