Fix showing graph

tcd1304_viewer/viewer.py

@@ -9,11 +9,20 @@ class Viewer:
 
         plt.xlabel("Pixel")
         plt.ylabel("Tension (V)")
-        plt.legend()
+        # plt.legend()
+        plt.ylim(0, 3.4)
 
         x = np.arange(1, len(data) + 1)
 
         plt.plot(x, data, label="Intensity")
+        # plt.draw()
+
+        self.show()
+        self.pause()
 
     def show(self) -> None:
-        plt.show()
+        plt.ion()
+        plt.show(block=False)
+
+    def pause(self, secs: float = 0.001) -> None:
+        plt.pause(secs)