add: subdiv_id and subdiv_center

server/map/get_relation.py

@@ -28,8 +28,7 @@ def get_relation(self, body_of_water: str):  # NB: implement body_of_water
     polygon_counter = 1
     num_of_polygons = len(polygons)
 
-    print("Dividing map... This may take a few minutes. As a reference, "
-          "a cell size of 0.01 takes approximately 13 minutes to complete.")
+    print("Dividing map... This may take a few minutes")
     # Divide all polygons into sections
     for polygon in polygons:
         cell_size = 0.04  # NB smaller values require patience
@@ -43,7 +42,7 @@ def get_relation(self, body_of_water: str):  # NB: implement body_of_water
 
         divided_map = combine_gird_with_poly(polygon, lines)
 
-        print("Polygon nr.", polygon_counter, " finished processing. ", num_of_polygons-polygon_counter,
+        print("Polygon nr.", polygon_counter, " finished processing. ", num_of_polygons - polygon_counter,
               " polygons left to process.")
         polygon_counter += 1
 
@@ -51,13 +50,18 @@ def get_relation(self, body_of_water: str):  # NB: implement body_of_water
 
     tiles = gpd.GeoDataFrame(geometry=divided_map)
 
-    print("Plotting... This may take some time too...")
+    print("Adding ID's and center coordinates")
+    tiles['subdiv_id'] = range(len(tiles))  # Give each subdivision a unique ID
+    # Calculate the center coordinates of each tile
+    tiles['subdiv_center'] = tiles['geometry'].centroid.apply(lambda x: [x.x, x.y])
+
+    print("Plotting map...")
     # NB test plot
     fig, ax = plt.subplots()
     ax.set_aspect(1.5)
 
     # Plot the divided_map
-    tiles.plot(ax=ax, facecolor='none', edgecolor='black')
+    tiles.plot(ax=ax, facecolor='none', edgecolor='none')
 
     for i, tile in enumerate(tiles.geometry):
         random_color = "#{:06x}".format(random.randint(0, 0xFFFFFF))
@@ -76,6 +80,7 @@ def get_relation(self, body_of_water: str):  # NB: implement body_of_water
     # Write GeoJSON to response object
     self.wfile.write(tiles_json.encode('utf-8'))
 
+
 def create_grid(poly: Polygon, cell_size):
     # Retrieve bounds of the entire polygon
     bounds = poly.bounds
@@ -114,4 +119,3 @@ def combine_gird_with_poly(polygon, grid):
             intersecting_tiles.append(intersection)
 
     return intersecting_tiles
-