Generating smooth wavetables for LEDs.

cycles.pde

size(500, 256);
translate(0, 256);
scale(1, -1);
background(255);

int n = 497;
float inScale = 100;
float outScale = 255;
//float[] data = {0,100,0}; // one cycle
//float[] data = {0,55,10,70,30,90,60,100,60,90,30,70,10,55,0}; // 7 cycles
for(int x = 0; x < n; x++) {
  float i = map(x, 0, n, 0, data.length - 1);
  int iL = floor(i), iR = ceil(i);
  float t = i - iL;
  float tt = (3 - 2*t)*t*t;
  float y = lerp(data[iL], data[iR], tt);
  y = y * outScale / inScale;
  y = round(y);
  point(x, y + .5);
  print(int(y) + ", ");
}