Converts an angle measured clockwise from 3 o'clock — amCharts' convention, where a pie's default startAngle of -90 is the top — to degrees clockwise from 12 o'clock.
startAngle
-90
Degrees clockwise from 3 o'clock
Degrees clockwise from 12 o'clock, in [0, 360)
[0, 360)
Converts an angle measured clockwise from 3 o'clock — amCharts' convention, where a pie's default
startAngleof-90is the top — to degrees clockwise from 12 o'clock.