Add buffer to coastline

If only dilation was used, the sea goes over the perimeter, so buffer is used

prettymaps/fetch.py

@@ -28,19 +28,20 @@ def get_perimeter(query, by_osmid = False, **kwargs):
     return ox.geocode_to_gdf(query, by_osmid = by_osmid, **kwargs, **{x: kwargs[x] for x in ['circle', 'dilate'] if x in kwargs.keys()})
 
 # Get coastline
-def get_coast(perimeter = None, point = None, radius = None, tags = {}, perimeter_tolerance = 0, union = True, circle = True, dilate = 0, file_location = None):
+def get_coast(perimeter = None, point = None, radius = None, perimeter_tolerance = 0, union = True, buffer = 0, circle = True, dilate = 0, file_location = None):
     if perimeter is not None:
         # Boundary defined by polygon (perimeter)
         bbox=perimeter.to_crs(3174)
-        bbox=bbox.buffer(perimeter_tolerance+dilate)
+        bbox=bbox.buffer(perimeter_tolerance+dilate+buffer)
         bbox=bbox.to_crs(4326)
         bbox=bbox.envelope
+		# Load the polygons for the coastline from a file
         geometries = read_file(file_location, bbox=bbox)
         perimeter = unary_union(ox.project_gdf(perimeter).geometry)
 
     elif (point is not None) and (radius is not None):
         # Boundary defined by circle with radius 'radius' around point
-        north,south,west,east=utils_geo.bbox_from_point(point, dist=radius+dilate)
+        north,south,west,east=utils_geo.bbox_from_point(point, dist=radius+dilate+buffer)
         bbox=(west,south,east,north)
         # Load the polygons for the coastline from a file
         geometries=read_file(file_location, bbox=bbox)