What steps will reproduce the problem?
1.Record a track
2.Open statistics page
What is the expected output? What do you see instead?
Expect to see a total distance of a few miles (from one of my recorded tracks).
Instead I see a very large distance, and the total distance is different each
time I open the statistics page.
Which Android device are you using?
Blu Life Play
What version of Android are you running?
4.2.1
What version of the Open GPS Tracker are you running?
1.3.5
Please provide any additional information below.
I think this is due to a bug in the android implementation of
Location.distanceTo(). This function seems to randomly return the wrong
distance. The location.distanceBetween() function also has the same problem.
I was able to get the correct statistics to be consistently displayed by using
the attached patch, which uses a modified form of the underlying code that
distanceTo() uses. I'm not sure why my version of the function works and the
original doesn't, because all I changed was to move the calculation of the
variable "A" out of the loop.
In the original the variable "A" takes on very large values resulting in an
incorrect distance. Also, this only occurs when the program is running without
the debugger, so to see the incorrect behavior in the original function you
should output the variable values to the log. Let me know if you can answer why
my modification works.
Original issue reported on code.google.com by nico.sch...@gmail.com on 17 Nov 2013 at 11:12
Original issue reported on code.google.com by
nico.sch...@gmail.comon 17 Nov 2013 at 11:12Attachments: