Update app.py

app.py

@@ -81,16 +81,16 @@ with st.sidebar:
         custom_lat = st.number_input('Enter Latitude', value=filtered_data['latitude'].mean())
         custom_lon = st.number_input('Enter Longitude', value=filtered_data['longitude'].mean())
         radius_visible = True  # Show radius slider for custom coordinates
+        # No need to initialize max_distance_all here
     else:
         custom_lat, custom_lon = data['latitude'].mean(), data['longitude'].mean()
         radius_visible = False  # Hide radius slider for random coordinates
+        max_distance_all = 0  # Initialize max_distance_all here
 
     # Slider for setting the zoom level
     if selected_coords == 'Custom':
         zoom_level = st.slider('Nível de zoom', min_value=1, max_value=15, value=zoom_level)
     else:
-        # Find the maximum distance between coordinates for the entire dataset
-        max_distance_all = 0  # Initialize max_distance_all
         for index, row in data.iterrows():
             distance_all = calculate_distance(row['latitude'], row['longitude'], data['latitude'].mean(), data['longitude'].mean())
             if distance_all > max_distance_all:
@@ -102,7 +102,6 @@ with st.sidebar:
         # Slider for setting the zoom level based on the entire dataset
         zoom_level = st.slider('Nível de zoom', min_value=1, max_value=15, value=zoom_level_all)
 
-
     # Conditionally render the radius slider
     if radius_visible:
         radius_in_meters = st.slider('Selecione raio (em metros)', min_value=100, max_value=5000, value=1000)