triangleWave
Calculate a value based on a triangle wave.
g.triangleWave(0.5);
A triangle wave looks like this:
g.sample(100, 0, 2).map(function(v) {
return {x: v * 60, y: g.triangleWave(v) * 60};
});
The triangle wave can take a minimum and maximum:
g.triangleWave(0.5, 100, 500);
It can also take a period, the unit size. If you would connect this to elapsedSeconds, the wave would oscillate from minimum to maximum in one second:
g.triangleWave(0.5, 100, 500, 2);
Finally, it takes a phase offset which shifts the wave. It compensates the first parameter:
g.triangleWave(0.7, 100, 500, 1, -0.2);
Parameters
v: The input value.min: The minimum value of the wave.max: The maximum value of the wave.period: The size of one “revolution” of the wave.offset: The phase offset of the wave.