blob: 3d91f5bdc5410f6b3cd39686eda7177db5a72dc6 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
from osm_parser import get_default_parser
class Node:
def __init__(self, id, lat, lng):
self.id = id
self.lat = float(lat)
self.lng = float(lng)
def coord_tuple(self):
return self.lat, self.lng
parser = None # Have a global reusable parser object
def extract_osm_nodes(f_name):
global parser
parser = get_default_parser(f_name)
nodes = dict()
for node in parser.iter_nodes():
nodes[node['id']] = Node(node['id'], node['lat'], node['lon'])
return nodes
def select_nodes_in_rectangle(nodes, min_lat, max_lat, min_long, max_long):
return [node for node in nodes.values()
if min_lat <= node.lat <= max_lat
and min_long <= node.lng <= max_long]
|
