How does the telemetry get updated?

[ebicko]

I’ve tracked down the telemetry.update calls to a

OpModeServices#refreshUserTelemetry(TelemetryMessage telemetry, double sInterval);

Now I do not see any links further than this, so how does it get rendered onto the screen, I guess my reasoning for this is to see if there is a way to do telemetry in a different way, just out of interest.

[ddiaz]

There are a couple loosely documented alternate ways to display telemetry, what kind of features are you looking for?

-Danny

[ebicko]

Nothing much, I’d want to see text or an image on the screen, but anything at all is nice.

[ddiaz]

What you should probably look at is the HTML DisplayFormat, e.g.:

telemetry.setDisplayFormat(Telemetry.DisplayFormat.HTML);

This will allow you to create output in a very limited HTML format (colorization and some special characters). Again this isn’t super well documented, but you can see an example of its use in the UtilityOctoQuadConfigMenu.java sample program here:

FIRST-Tech-Challenge/FtcRobotController/blob/master/FtcRobotController/src/main/java/org/firstinspires/ftc/robotcontroller/external/samples/UtilityOctoQuadConfigMenu.java#L324

You can also see an example use of creating HTML formatted telemetry text in the getDisplayText() function here:

FIRST-Tech-Challenge/FtcRobotController/blob/master/FtcRobotController/src/main/java/org/firstinspires/ftc/robotcontroller/external/samples/UtilityOctoQuadConfigMenu.java#L623