fix: cell sizing formula

app/lib/widgets/choropleth_map.dart

@@ -50,6 +50,9 @@ class ChoroplethMapState extends State<ChoroplethMap> {
         }
       }
 
+      // Sort the list of SubDiv objects based on each subdivision id
+      _subdivisions.sort((a, b) => a.sub_div_id.compareTo(b.sub_div_id));
+
       dataSource = MapShapeSource.memory(
         widget.relation,
         shapeDataField: 'sub_div_id',

server/map_handler/add_new_lake.py

@@ -9,19 +9,6 @@ from shapely.geometry import Polygon, LineString, MultiLineString
 
 from server.consts import LAKE_RELATIONS_PATH
 
-'''
-# 0
-starting coordinate (x,y)
-
-# 1
-1 deg lat = 111.32km
-1 deg lng = 40075km * cos( lat ) / 360
-
-# 2 Formulas for calculating a distance in kilometers to a distance in latitude and longitude
-lat = distance_in_km/111.32km
-lng = (distance_in_km × 360)/(40075km × cos(lat))
-'''
-
 
 # Read a json file with relation data and send to response object
 def cut_map(self, cursor, lake_name: str, cell_size_in_km: float = 0.5):
@@ -47,7 +34,7 @@ def cut_map(self, cursor, lake_name: str, cell_size_in_km: float = 0.5):
         divided_map = []
 
         # Convert the cell size to degrees
-        cell_size = cell_size_in_km * 10
+        cell_size = cell_size_in_km * 2
         cell_width = cell_size / 111.32
         # A slightly more complicated formula is required to calculate the height. This ensures that
         # the height in km is equal to the width in km regardless of the latitude.