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import json
import algorithms
import store
from lib import run_server, get, post, read_html
grid = None
nodes = None
unconnected_nodes = None
@get('/')
def index():
global nodes
global grid
global unconnected_nodes
nodes, grid, unconnected_nodes = store.extract_osm_nodes("linkoping.osm")
return read_html('templates/index.html')
@get('/show-area')
def show_area():
rect = dict()
for (k, node) in enumerate(
store.select_nodes_in_rectangle(nodes, 58.3984, 58.3990, 15.5733,
15.576)):
rect[node.id] = node.coord_tuple()
return json.dumps(rect)
@get('/favicon.ico')
def favicon():
with open("data/favicon.ico", "rb") as image:
read_image = image.read()
image_bytes = bytearray(read_image)
return image_bytes
@get('/show-unconnected-nodes')
def show_unconnected_nodes():
print(f"Showing {len(unconnected_nodes)} unconnected nodes")
return json.dumps({node.id: node.coord_tuple() for node in unconnected_nodes})
@post('/shortest-path')
def shortest_path(body):
body = json.loads(body)
source_id = algorithms.grid_search(grid,
store.Node(-1, body['lat1'],
body['lng1']))
target_id = algorithms.grid_search(grid,
store.Node(-1, body['lat2'],
body['lng2']))
path = algorithms.find_shortest_path(nodes, source_id, target_id)
response = {"path": [(nodes[node].lat, nodes[node].lng) for node in path]}
return json.dumps(response)
run_server()
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