Comments on: Optimizing Trail Recording

By: mpele

mpele — Wed, 15 Jul 2009 13:24:59 +0000

I am not so shure about mathematical values, but maybe it would be better to be:

if(angleDelta>0.105 and angleDelta < 6.28-0.105)

Diference between 2 and 358 degrees is 4 deegree and it should not trigger recording.

By: Tommi Laukkanen

Tommi Laukkanen — Mon, 04 May 2009 17:53:19 +0000

@Phil: Thanks! Good idea to use the accelerometer for filtering. Basically we could could only record points when acceleration is noticed.

By: Phil

Phil — Mon, 04 May 2009 00:38:48 +0000

Hi Tommi hi all,
Firstly i would like to say you that your softs are wonderfull.

For few new phone with accelerometer it should be possible to use accelerometer for filter the GPS data?

Best regards

By: Tommi Laukkanen

Tommi Laukkanen — Thu, 16 Apr 2009 18:49:14 +0000

@Paul: Yes, it would be a good idea to make the minimum delta value as configurable. You can test the filtering in the latest beta version of MTE as I just implemented this to the trunk just few days ago.

By: Paul

Paul — Mon, 13 Apr 2009 09:08:13 +0000

Having a separate stream for latitude would be very nice. With optional period, minimum delta, filtering…

By: Tommi Laukkanen

Tommi Laukkanen — Sun, 29 Mar 2009 10:57:12 +0000

@Paul: Yes, you could add the altitude to this equation but since GPS doesn’t often give that precise altitude information I didn’t include it. That could be configurable option to optimization.

By: Paul

Paul — Sun, 29 Mar 2009 10:46:01 +0000

What about the 3rd dimension