Update pdf_handler.py

gradio_scripts/pdf_handler.py

@@ -286,7 +286,7 @@ def generate_fish_tracks(pdf, result, id):
     plt.text(h*(1-Y[0]), w*(1-X[0]), "Start", fontsize=15, weight="bold")
     plt.text(h*(1-Y[-1]), w*(1-X[-1]), "End", fontsize=15, weight="bold")
 
-    colors = []
+    colors = [""]
     for i in range(1, len(X)):
 
         certain = certainty[i]
@@ -304,6 +304,7 @@ def generate_fish_tracks(pdf, result, id):
     
     print(len(X))
     print(len(Y))
+    print(len(colors))
     for i in range(1, len(X)):
         ax.plot(h*(1-Y[i]), w*(1-X[i]), color=colors[i], marker='o', markersize=3)