Show angle of center bubble level

[kylecorry31]

Draw the angle label on the center bubble level. Look into displaying this in the title as well (just call it angle?).

[michaelblyons]

r for radius?
Theta for angle?

[kylecorry31]

r for radius? Theta for angle?

I'm just a bit concerned that those are too mathematical (X and Y are already kind of there).

[darrencoen]

If i can chime in, it probably is Theta θ because it is the resulting vector of the X and Y.

If i place my phone on an angled surface, if i rotate my phones orientation but keep it on the surface, the X and Y will change based on where the top of the phone is oriented. But the Theta will always remain the same as it is a combination of the two vectors and how they combine to coordinate the bubble from the origin.

Maybe V for vector?

[michaelblyons]

https://en.m.wikipedia.org/wiki/Polar_coordinate_system

[kylecorry31]

I think I will most likely just go with calling it "angle" since that's a common term. I feel like theta and vector may be too mathematical.

[kylecorry31]

And for reference, here's where that center angle is being calculated:

Trail-Sense/app/src/main/java/com/kylecorry/trail_sense/tools/level/ui/BubbleLevel.kt

Line 138 in 2916e43

val centerPercent = hypot(xAngle, yAngle).coerceAtMost(90f) / 90f

(technically it's the centerPercent * 90, the centerAngle is just used to render this in polar coordinates)