Enable altitude

[ma2yama]

⚠️ All PRs have to be done versus 'dev' branch, so be aware of that, or we'll close your issue ⚠️

What kind of change does this PR introduce?

new feature

Can it be referenced to an Issue? If so what is the issue # ?

No

How can we test it?

Set useAltitude to true and run the location-based example.

Summary

Currently, altitude information is not being used. As a result, it's not possible to display content above the current position. By making altitude usage optional, we want to expand what's possible.

Does this PR introduce a breaking change?

No

Please TEST your PR before proposing it. Specify here what device you have used for tests, version of OS and version of Browser

Xperia Ace III, Android 14, Chrome 135.0.7049.111

Other information

[kalwalt]

@ma2yama thank you for this PR, i Will review and test when i have time.

[nickw1]

Hi @ma2yama @kalwalt I will try and have a look too, I have been a little short of time recently but will hopefully find a bit of time in the next week or two.

[nickw1]

@ma2yama @kalwalt sorry for delay getting back on this. I finally have time this week, I've been very busy at work since around late April - many apologies.

[nickw1]

@ma2yama seems to be working fine. Will merge into dev. Sorry for the delay and many thanks for your contribution!