September 10, 2015 at 7:41 pm #561
One of the basic but foundational functions in Track Attack is the ability to finish your session, hit ‘stop’, immediately see your lap times and replay the entire session or individual laps.
When you play them back, you will see the video for a given session or lap with the corresponding data layer (which shows stats about the session, real time lap timer, real time speed, the actual driven line and the position of the car as the lap is playing).
Side tangent: a common question we get when demo’ing Track Attack is, in the driven line, what does the red, yellow and green lines mean? Glad you asked!
- Green: Accelerating – so when we calculate the speed between two GPS points, did the speed increased.
- Red: Decelerating – the speed decreased.
- Yellow: Coasting – the speed was the same between two or more GPS points.
So, literally, how do you playback a session?
Step 1: Record a session
You need to have recorded a session, to playback a session. That topic is covered here and a simple video posted below.
Step 2: Play it back on your phone
Once your session is finished recording, the app will take you to the session details for that session. From there, you can select a lap (if it was lapped based) or the session itself (if it was point to point based).
Here you can hit the ‘play’ button for each individual lap or the ‘play’ button at the bottom of the screen.
The session will playback, if you recorded video, as seen in the first screenshot way above.
Make sure you recorded video
By default, all sessions are recorded with video. To turn off video recording and just do lap timing and data collection, in the record screen, right side menu, is a ‘camera’ button. You can toggle that button to turn on or off video recording.
But I uploaded my videos and deleted the video from my phone. What now?
Excellent! As long as you have an internet connection (that is good enough for video streaming), the app will stream the video real-time from the server and play the session back as if it were still stored locally. Video and data will be synchronized, only having issues if your internet connection is weak or cutting in or out.
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