Cartography/prettymaps
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Added buffer distance in get_streets()

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Added a buffer distance in get_streets() to fetch streets that are not fully inside the perimeter.
This commit is contained in:
Charbel Abi Daher
2021-08-26 15:12:56 +03:00
committed by GitHub
parent 7f3aa74857
commit e938eaa614
1 changed files with 4 additions and 4 deletions
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6
prettymaps/fetch.py
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@@ -80,7 +80,7 @@ def get_geometries(perimeter = None, point = None, radius = None, tags = {}, per
return geometries return geometries
# Get streets # Get streets
def get_streets(perimeter = None, point = None, radius = None, layer = 'streets', width = 6, custom_filter = None, circle = True, dilate = 0): def get_streets(perimeter = None, point = None, radius = None, layer = 'streets', width = 6, custom_filter = None, buffer = 0,circle = True, dilate = 0):
if layer == 'streets': if layer == 'streets':
layer = 'highway' layer = 'highway'
@@ -88,13 +88,13 @@ def get_streets(perimeter = None, point = None, radius = None, layer = 'streets'
# Boundary defined by polygon (perimeter) # Boundary defined by polygon (perimeter)
if perimeter is not None: if perimeter is not None:
# Fetch streets data, project & convert to GDF # Fetch streets data, project & convert to GDF
streets = ox.graph_from_polygon(unary_union(perimeter.geometry), custom_filter = custom_filter) streets = ox.graph_from_polygon(unary_union(perimeter.geometry).buffer(buffer) if buffer > 0 else unary_union(perimeter.geometry), custom_filter = custom_filter)
streets = ox.project_graph(streets) streets = ox.project_graph(streets)
streets = ox.graph_to_gdfs(streets, nodes = False) streets = ox.graph_to_gdfs(streets, nodes = False)
# Boundary defined by polygon (perimeter) # Boundary defined by polygon (perimeter)
elif (point is not None) and (radius is not None): elif (point is not None) and (radius is not None):
# Fetch streets data, save CRS & project # Fetch streets data, save CRS & project
streets = ox.graph_from_point(point, dist = radius+dilate, custom_filter = custom_filter) streets = ox.graph_from_point(point, dist = radius+dilate+buffer, custom_filter = custom_filter)
crs = ox.graph_to_gdfs(streets, nodes = False).crs crs = ox.graph_to_gdfs(streets, nodes = False).crs
streets = ox.project_graph(streets) streets = ox.project_graph(streets)
# Compute perimeter from point & CRS # Compute perimeter from point & CRS