From 9e7f219b112a2b2386780f45138594a04a34dbe0 Mon Sep 17 00:00:00 2001
From: Sergey Vartanov <me@enzet.ru>
Date: Fri, 7 Aug 2015 01:04:38 +0300
Subject: [PATCH] Getting data from OpenStreetMap.

---
 .gitignore      |   1 +
 lib/network.pyc | Bin 0 -> 2651 bytes
 osm_getter.py   |  44 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 45 insertions(+)
 create mode 100644 lib/network.pyc
 create mode 100644 osm_getter.py

diff --git a/.gitignore b/.gitignore
index f570426..023cbf0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,7 @@
 *.png
 *.pyc
 *.svg
+missed_tags.yml
 
 # Test scheme files
 
diff --git a/lib/network.pyc b/lib/network.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..56954cefb5fa28395614badee096dffc7cb878e4
GIT binary patch
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diff --git a/osm_getter.py b/osm_getter.py
new file mode 100644
index 0000000..a930a8f
--- /dev/null
+++ b/osm_getter.py
@@ -0,0 +1,44 @@
+import re
+import sys
+
+sys.path.append('lib')
+
+import network
+
+usage = '<box coordinates: left,bottom,right,top>'
+
+if len(sys.argv) < 2:
+    print 'Usage: python ' + sys.argv[0] + ' ' + usage
+    sys.exit(0)
+
+boundary_box = sys.argv[1]
+
+matcher = re.match('(?P<left>[0-9\\.-]*),(?P<bottom>[0-9\\.-]*),' + \
+    '(?P<right>[0-9\\.-]*),(?P<top>[0-9\\.-]*)', boundary_box)
+
+def error(message=None):
+    if message:
+        print 'Error: ' + message + '.'
+    else:
+        print 'Error.'
+    sys.exit(1)
+
+if not matcher:
+    error('invalid boundary box')
+else:
+    try:
+        left = float(matcher.group('left'))
+        bottom = float(matcher.group('bottom'))
+        right = float(matcher.group('right'))
+        top = float(matcher.group('top'))
+    except Exception as e:
+        error('parsing boundary box')
+    if left >= right:
+        error('negative horisontal boundary')
+    if bottom >= top:
+        error('negative vertical boundary')
+    if right - left > 0.5 or top - bottom > 0.5:
+        error('box too big')
+    content = network.get_content('api.openstreetmap.org/api/0.6/map',
+            {'bbox': boundary_box}, 
+            'map/' + boundary_box + '.xml', 'html')