Update app.py

app.py

@@ -13,6 +13,16 @@ def calculate_distance(lat1, lon1, lat2, lon2):
     coords_2 = (lat2, lon2)
     return geodesic(coords_1, coords_2).meters
 
+# Find the maximum distance between coordinates
+max_distance = 0
+for index, row in data.iterrows():
+    distance = calculate_distance(row['latitude'], row['longitude'], data['latitude'].mean(), data['longitude'].mean())
+    if distance > max_distance:
+        max_distance = distance
+
+# Calculate a zoom level based on the maximum distance
+zoom_level = 15 - np.log10(max_distance / 25000)
+
 # Create a sidebar for controls
 with st.sidebar:
     # Display a title
@@ -27,7 +37,7 @@ with st.sidebar:
         custom_lat, custom_lon = data['latitude'].mean(), data['longitude'].mean()
 
     # Slider for setting the zoom level
-    zoom_level = st.slider('Nível de zoom', min_value=1, max_value=15, value=5)
+    zoom_level = st.slider('Nível de zoom', min_value=1, max_value=15, value=zoom_level)
 
     # Slider to set the radius in meters
     radius_in_meters = st.slider('Selecione raio (em metros)', min_value=100, max_value=5000, value=1000)