Merge pull request #2 from firefly-cpp/master

Average altitude added

README.md

@@ -16,6 +16,7 @@ Data extracted:
  - calories burned during workout (as estimated by device)
  - average, max and min heart rate during workout
  - average pace during workout
+ - average altitude during workout
 
 ## Installation
 

tcxparser.py

@@ -15,6 +15,9 @@ def __init__(self, tcx_file):
     def hr_values(self):
         return [int(x.text) for x in self.root.xpath('//ns:HeartRateBpm/ns:Value', namespaces={'ns': namespace})]
 
+    def altitude_points(self):
+        return [float(x.text) for x in self.root.xpath('//ns:AltitudeMeters', namespaces={'ns': namespace})]
+
     @property
     def latitude(self):
         return self.activity.Lap.Track.Trackpoint.Position.LatitudeDegrees.pyval
@@ -69,4 +72,9 @@ def pace(self):
         """Average pace (mm:ss/km for the workout"""
         secs_per_km = self.duration/(self.distance/1000)
         return time.strftime('%M:%S', time.gmtime(secs_per_km))
-
+
+    @property
+    def altitude_avg(self):
+        """Average altitude for the workout"""
+        altitude_data = self.altitude_points()
+        return sum(altitude_data)/len(altitude_data)

test_tcxparser.py

@@ -43,6 +43,9 @@ def test_hr_avg(self):
 
     def test_pace(self):
         self.assertEquals(self.tcx.pace, '07:05')
+
+    def test_altitude_avg_is_correct(self):
+        self.assertAlmostEqual(self.tcx.altitude_avg, 172.020056184)
 
 if __name__ == '__main__':
     unittest.main()