Coretemp core temperature data not being read in 3.7

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Graham White

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May 11, 2025, 2:59:48 AM5/11/25
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Hi,

I installed 3.7 yesterday and the Coretemp core temperature data was not read from the FIT file from my Hammerhead Karoo 2. The skin temperture was. This is on my MacBook. I've an early release of 3.6 (Build ID 5000 dated 5 Aug 2003) on my Windows PC. It read both the core and skin temperature.

On 3.7, looking at the Raw Data tab at the bottom of the screen there are Basic Data, DEVELOPER LAP and SESSION tabs. In 3.6 it is Basic Data, DEVELOPER and EXPORT. The Core Temperature data sits under the EXPORT tab in FIELD_139.

Can this be fixed?

Regards

Graham

Ale Martinez

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May 11, 2025, 7:14:52 AM5/11/25
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It should be on DEVELOPER tab according after https://github.com/GoldenCheetah/GoldenCheetah/pull/4612

Graham White

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May 11, 2025, 8:39:16 AM5/11/25
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Ale,

Thanks for the link.

Please see attached screenshot showing the DEVELOPER tab of the raw data after an import with 3.7. I don't have the CIQ_core_temperature column. On 3.6 the DEVELOPER tab shows the same columns but three is also the EXPORT tab. The second (more recent screenshot) shows the core temp data is there.

Ihewitt's post dated 2nd Feb seems to be saying Garmin devices use a hack to get the data into the DEVELOPER tab. Version 3.6 seems to be using a different method to pull the data in but I'm not a coder. I've no idea which would be the correct method, if there is one.

I guess the workaround for now is to use 3.6 to read the FIT file, if I'm using the CORE sensor.

Regards

Graham 

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Regards

Graham
Screenshot 2025-05-11 at 13.24.35.png
Screenshot 2025-05-11 at 13.35.32.png

Ale Martinez

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May 11, 2025, 3:42:12 PM5/11/25
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El domingo, 11 de mayo de 2025 a la(s) 9:39:16 a.m. UTC-3, gwhi...@gmail.com escribió:
Ale,

Thanks for the link.

Please see attached screenshot showing the DEVELOPER tab of the raw data after an import with 3.7. I don't have the CIQ_core_temperature column. On 3.6 the DEVELOPER tab shows the same columns but three is also the EXPORT tab. The second (more recent screenshot) shows the core temp data is there.

Ihewitt's post dated 2nd Feb seems to be saying Garmin devices use a hack to get the data into the DEVELOPER tab. Version 3.6 seems to be using a different method to pull the data in but I'm not a coder. I've no idea which would be the correct method, if there is one.

If you attach a sample fit file I will give this a look, otherwise there is no much I can do.
 
I guess the workaround for now is to use 3.6 to read the FIT file, if I'm using the CORE sensor.

BTW one the problems we have is the lack of collaboration of users for testing when features are developed, once a version is released and the involved developers are not actively working on them anymore tends to be too late for a rapid response. 

Graham White

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May 11, 2025, 4:32:40 PM5/11/25
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Ale,

attached a FIT file with the CoreTemp Data.  V3.6 reads in the core temperature in FIELD_139 under the EXTRA tab. To plot the data I used:

# type in a formula to use

# for e.g. BikeStress / Duration

# as you type the available metrics

# will be offered by autocomplete

XDATA("EXTRA","FIELD_139",repeat)


V 3.7 reads the skin temp data but not the core temperature.


Fit File Viewer show a column labeled core_temperature.

Understand your last point and appreciate you spending some time to understand if there is an easy solution.

Graham

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Regards

Graham
Karoo-Botley_BW_Swanmore_Wickham-2025-05-09-1238.fit
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Ale Martinez

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May 11, 2025, 8:33:22 PM5/11/25
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El domingo, 11 de mayo de 2025 a la(s) 5:32:40 p.m. UTC-3, gwhi...@gmail.com escribió:
Ale,

attached a FIT file with the CoreTemp Data.  V3.6 reads in the core temperature in FIELD_139 under the EXTRA tab. To plot the data I used:

# type in a formula to use

# for e.g. BikeStress / Duration

# as you type the available metrics

# will be offered by autocomplete

XDATA("EXTRA","FIELD_139",repeat)


V 3.7 reads the skin temp data but not the core temperature.


Fit File Viewer show a column labeled core_temperature.

Understand your last point and appreciate you spending some time to understand if there is an easy solution.

Thank you, in fact there seems to be one in this case: https://github.com/GoldenCheetah/GoldenCheetah/issues/4643 

Ale Martinez

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May 12, 2025, 5:43:22 PM5/12/25
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Since this is a regression I generated a new v3.7 Windows/Qt6 installer including its fix, it is available from https://github.com/GoldenCheetah/GoldenCheetah/releases/tag/v3.7, Linux and macOS updates will follow. 

Ale Martinez

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May 13, 2025, 9:03:33 AM5/13/25
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Linux and macOS Qt6 builds are updated too. 

Graham White

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May 14, 2025, 4:59:40 PM5/14/25
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Ale,

Did a ride with the Core today. All working as expected - needed to create a new chart for the new variable name but no big deal.

Thank you very much

Graham



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Regards

Graham
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