Add LayerControl to KMLMap

app.py

@@ -365,6 +365,7 @@ def process_and_display(file_obj, url_str, buffer_m, progress=gr.Progress()):
     bounds = geometry_gdf.to_crs(epsg=4326).total_bounds
     map_bounds = [[bounds[1], bounds[0]], [bounds[3], bounds[2]]]
     m.fit_bounds(map_bounds, padding=(10, 10))
+    m.addLayerControl()
 
     ee_geometry = ee.Geometry(json.loads(geometry_gdf.to_crs(4326).to_json())['features'][0]['geometry'])
     dem_html, slope_html = get_dem_slope_maps(ee_geometry, map_bounds, wayback_url=wayback_url, wayback_title=wayback_title)
@@ -387,24 +388,16 @@ def calculate_geometry_metrics(file_url: str):
     perimeter of the first valid polygon, and returns the results.
     """
     try:
-        # Decode URL-encoded characters
+
         decoded_url = unquote(file_url)
-        
-        # Fetch and parse the spatial data
         input_gdf = get_gdf_from_url(decoded_url)
         if input_gdf is None or input_gdf.empty:
             raise ValueError("Could not read geometry from the provided URL.")
-
-        # Clean up geometries (e.g., fix invalid polygons)
         input_gdf = preprocess_gdf(input_gdf)
-        
-        # Find the first valid polygon in the GeoDataFrame
         geometry_gdf = next((input_gdf.iloc[[i]] for i in range(len(input_gdf)) if is_valid_polygon(input_gdf.iloc[[i]])), None)
         
         if geometry_gdf is None:
             raise ValueError("No valid polygon found in the provided file.")
-            
-        # Project to a suitable CRS for accurate measurements
         projected_gdf = to_best_crs(geometry_gdf)
         
         # Calculate area (in hectares) and perimeter (in meters)
@@ -415,7 +408,6 @@ def calculate_geometry_metrics(file_url: str):
         centroid_gdf = projected_gdf.to_crs(epsg=4326)
         centroid_point = centroid_gdf.centroid.item()
         
-        # Return the results in a JSON response
         return {
             "area_hectares": round(area_hectares, 4),
             "perimeter_meters": round(perimeter_meters, 4),
@@ -553,7 +545,6 @@ def generate_comparison_maps(geometry_json, selected_index, selected_years, evi_
         start_date = f"{year}-{start_month:02d}-{start_day:02d}"
         end_date = f"{year}-{end_month:02d}-{end_day:02d}"
 
-        # --- Wayback Basemap Logic (unchanged) ---
         wayback_url = None
         wayback_title = "Default Satellite"
         if not WAYBACK_DF.empty: