New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Change from NaN to NULL for heading in location claim #469

Open

laurencelundblade wants to merge 1 commit into master from loc-null

Collaborator

laurencelundblade commented Jan 17, 2025

This changes the heading value from NaN to NULL to represent the heading when stationary.

This aligns with a change in the W3C specification.

Also, JSON can't represent a NaN and the convention in JSON is to use NULL.

(NaN is IEEE 754 representation of "not a number" typically used to represent divide by 0 in local calculations).

This is somewhat of a protocol change, but

The protocol was unimplementable in JSON
Backwards compatibility in CBOR is easy to provide by checking for both NaN and NULL


          Change from NaN to NULL for heading in location claim

614f3a4

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet