Crash on iPad while "after-the-fact" processing of data

Help on issues you run into with LapTimer; in case you have a question on how to use LapTimer, use the forum "Using LapTimer" instead
Post Reply
schluerfi1978
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 54
Joined: Mon Oct 03, 2011 8:04 pm

Crash on iPad while "after-the-fact" processing of data

Post by schluerfi1978 » Thu Sep 25, 2014 10:55 am

Hello,

I'm recording my data with an Android mobile (Petrolhead) and typically sync it with the Grand Prix edition on my iPad via Dropbox.

Now, I noticed an issue. While the postprocessing of the lap data (smoothing, re-calculating accelerations, ...) works fine on the actual Android recording device, the iPad HLT crashes back to homescreen when I try to do the postprocessing with the imported lap.

Any thoughts on this?

I'm not sure whether the crash to homescreen would also occur with data recorded with the iPad (it's only a Wifi version and I don't own a suitable GPS to record lap data).

BR,
Michael
User avatar
Harry
Site Admin
Site Admin
Posts: 9518
Joined: Sun Sep 12, 2010 10:32 am
Location: Siegum, Germany
Contact:

Re: Crash on iPad while "after-the-fact" processing of data

Post by Harry » Thu Sep 25, 2014 12:01 pm

Crashes on iPad are most probably due to main memory shortage. Which iPad gen do you use? Rebooting the device ahead of overlaying, overlaying less laps in a row, reducing resolution, reducing reference and other PiP videos all help to work around.

Harry
Image Image Image Image
schluerfi1978
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 54
Joined: Mon Oct 03, 2011 8:04 pm

Re: Crash on iPad while "after-the-fact" processing of data

Post by schluerfi1978 » Thu Sep 25, 2014 12:30 pm

It's an iPad 3. The crash is not related to overlaying, just the re-calculating (z.B. "Berechnen" --> "Daten glätten" oder "Berechnen" --> "Beschleunigung")
User avatar
Harry
Site Admin
Site Admin
Posts: 9518
Joined: Sun Sep 12, 2010 10:32 am
Location: Siegum, Germany
Contact:

Re: Crash on iPad while "after-the-fact" processing of data

Post by Harry » Thu Sep 25, 2014 12:36 pm

Oh sorry... Are you on version 18.3.3?
Image Image Image Image
schluerfi1978
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 54
Joined: Mon Oct 03, 2011 8:04 pm

Re: Crash on iPad while "after-the-fact" processing of data

Post by schluerfi1978 » Thu Sep 25, 2014 5:33 pm

This should answer the question:

SOFTWARE
Product: Harry's LapTimer - Features: Grand Prix Edition
Version: v18.3.3 Grand Prix Edition - Build: Sep 23 2014, 19:01:55
MD5: 49c6915bcd13110d5759b526e230b973

SYSTEM
Device: iPad - Model: iPad 3rd Gen (Wi-Fi Only)
OS: iPhone OS 7.1.2 - Databases: G65L66V67P64
Available memory: 7.2 GB - GPS: Internal
User avatar
Harry
Site Admin
Site Admin
Posts: 9518
Joined: Sun Sep 12, 2010 10:32 am
Location: Siegum, Germany
Contact:

Re: Crash on iPad while "after-the-fact" processing of data

Post by Harry » Thu Sep 25, 2014 5:53 pm

It is a 18.3.3 issue. It will be fixed in 18.3.4

Harry
Image Image Image Image
Qomomoko
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 21
Joined: Fri May 16, 2014 2:29 pm

Re: Crash on iPad while "after-the-fact" processing of data

Post by Qomomoko » Sat Sep 27, 2014 12:31 pm

Nice, I been having that problem also with an Ipad 3 AND also with an Ipad air.

For now I do the recalculation on my iPhone eventhough it can be hard b/c it is so sensitive to the finger.

Thanks for the fix Harry!!

Also,

how does under "recalculation", how does pressing "Accuracy" and/or "smooth data" effect "acceleration" adjustments?

I am using an external GPS, so I figure the "accuracy" and "smooth data" is mostly for the raceline dots but not sure.

To verify, with my set up and external gps, the stock lean angle is MEASURED from the iPhone. Then, "accelerations" adjustments will be done by adjusting to the degree choosen "light_______ hard" and based on the GPS info.

My buddies from my South Florida Sport Bikes, who do track are getting more and more interested in your APP!!! :D

When learn better, plan on submitting a " track set" for our tracks (Homested Miami Speedway, and Palm Beach International Raceway) but set up more for motorcycles; hope to do a great job (these already exist and work great but plan on some touch ups)
User avatar
Harry
Site Admin
Site Admin
Posts: 9518
Joined: Sun Sep 12, 2010 10:32 am
Location: Siegum, Germany
Contact:

Re: Crash on iPad while "after-the-fact" processing of data

Post by Harry » Sat Sep 27, 2014 12:45 pm

Accuracy recalculation should not be used except when recommended. It does not affect acceleration. Smoothing readjusts GPS positions. It can be used in case you find your plot to show noisy positions. Again, you will mostly not use it. It can be applied before recalculating acceleration.

On your tracks - please post on the Tracks forum on this one, but please add some hints what is different for motorbikes.

Harry
Image Image Image Image
schluerfi1978
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 54
Joined: Mon Oct 03, 2011 8:04 pm

Re: Crash on iPad while "after-the-fact" processing of data

Post by schluerfi1978 » Fri Oct 03, 2014 1:23 pm

Everything fine for me, today's 18.3.4 release solved my issue on the iPad as stated by Harry. Thanks for taking care!
Qomomoko
20 or more Posts ★★★
20 or more Posts ★★★
Posts: 21
Joined: Fri May 16, 2014 2:29 pm

Re: Crash on iPad while

Post by Qomomoko » Fri Oct 03, 2014 2:36 pm

schluerfi1978 wrote:Everything fine for me, today's 18.3.4 release solved my issue on the iPad as stated by Harry. Thanks for taking care!

Sweet. moto track this weekend and surely will be overlaying on Sunday night.
Post Reply