Update app.py

app.py

@@ -77,7 +77,12 @@ def plot_trajectory(trajectory):
         x_obs = obstacle_position[0] + obstacle_radius * np.cos(u) * np.sin(v)
         y_obs = obstacle_position[1] + obstacle_radius * np.sin(u) * np.sin(v)
         z_obs = obstacle_position[2] + obstacle_radius * np.cos(v)
-        ax.plot_wireframe(x_obs, y_obs, z_obs, color='orange', alpha=0.5, label="Obstacle" if obstacle == obstacles[0] else "")
+        ax.plot_wireframe(x_obs, y_obs, z_obs, color='orange', alpha=0.5)
+
+        # Add label only once for legend clarity
+        if obstacle is obstacles[0]:  
+            ax.plot([], [], [], color='orange', alpha=0.5, label="Obstacle")
+
     
     ax.set_xlabel("X")
     ax.set_ylabel("Y")