Create test data generator script

1 files changed, 55 insertions, 0 deletions

diff --git a/tools/test-generator.py b/tools/test-generator.py
new file mode 100755
index 000000000..681d1755d
--- /dev/null
+++ b/tools/test-generator.py
@@ -0,0 +1,55 @@
+#!/usr/bin/python
+
+import sys
+import math
+import urllib
+import urllib2
+import time
+
+id = '123456789012345'
+server = 'http://localhost:5055'
+period = 1
+step = 0.001
+
+waypoints = [
+    (40.722412, -74.006288),
+    (40.728592, -74.005258),
+    (40.728348, -74.002822),
+    (40.725437, -73.996750),
+    (40.721778, -73.999818),
+    (40.723323, -74.002994)
+]
+
+points = []
+
+for i in range(0, len(waypoints)):
+    (lat1, lon1) = waypoints[i]
+    (lat2, lon2) = waypoints[(i + 1) % len(waypoints)]
+    length = math.sqrt((lat2 - lat1) ** 2 + (lon2 - lon1) ** 2)
+    count = int(math.ceil(length / step))
+    for j in range(0, count):
+        lat = lat1 + (lat2 - lat1) * j / count
+        lon = lon1 + (lon2 - lon1) * j / count
+        points.append((lat, lon))
+
+def send(lat, lon, course):
+    params = (('id', id), ('timestamp', int(time.time())), ('lat', lat), ('lon', lon), ('bearing', course))
+    urllib2.urlopen(server + '?' + urllib.urlencode(params)).read()
+
+def course(lat1, lon1, lat2, lon2):
+    lat1 = lat1 * math.pi / 180
+    lon1 = lon1 * math.pi / 180
+    lat2 = lat2 * math.pi / 180
+    lon2 = lon2 * math.pi / 180
+    y = math.sin(lon2 - lon1) * math.cos(lat2)
+    x = math.cos(lat1) * math.sin(lat2) - math.sin(lat1) * math.cos(lat2) * math.cos(lon2 - lon1)
+    return (math.atan2(y, x) % (2 * math.pi)) * 180 / math.pi
+
+index = 0
+
+while True:
+    (lat1, lon1) = points[index % len(points)]
+    (lat2, lon2) = points[(index + 1) % len(points)]
+    send(lat1, lon1, course(lat1, lon1, lat2, lon2))
+    time.sleep(period)
+    index += 1