[Request] Data Field - ZeroAltitude

I'm curious as to why this is needed / wanted? What is the benefit? What are its uses?

the real altimeter have this function?

No, the altimeter gives you altitude, what the OP wanted (it now appears) is height. The difference is that altitude is above mean sea level and height is above (local) ground level.

You may want to check "App Approval Exceptions" if you are looking to publish this:

https://forums.garmin.com/developer/connect-iq/w/wiki/10/app-approval-exceptions

"However, apps designed for scuba diving, free diving, skydiving, base-jumping, and extreme flight sports will not be listed on the app store for the following reasons:"

I didn't design this for skydiving though, it is meant for mountain biking........

As CloggyAbroad said, my real altimeter just tells me altitude from the ground up. So when I turn it on, it zeros to dropzone's altitude and then it counts up and back down. But the altimeter ONLY TELLS ALTITUDE.

Thanks again Cloggy.

Just got posted to the store!

I will try it this weekend on my next Bike Ride.

Yes, it was JoeOutkast that mentioned sky diving