behreajj

class Gradient {
  ArrayList<ColorStop> colors = new ArrayList<ColorStop>();

  Gradient() {
  }

  Gradient(ColorStop... cs) {
    for (int i = 0, sz = cs.length; i < sz; ++i) {
      colors.add(cs[i]);
    }

behreajj

boolean approximates(ColorStop c, float tolerance) {
  return abs(percent - c.percent) < tolerance;
}

behreajj

  void addColorStop(ColorStop cs) {
    ColorStop other;
    for (int i = 0, sz = colors.size(); i < sz; ++i) {
      other = colors.get(i);
      if (cs.approximates(other, Gradient.TOLERANCE)) {
        println(cs, "percentage is too close to", other);
        return;
      }
    }
    colors.add(cs);

behreajj

  Gradient(ColorStop... cs) {
    int sz = cs.length;
    for (int i = 0; i < sz; ++i) {
      colors.add(cs[i]);
    }
    if (sz > 1) {
      java.util.Collections.sort(colors);
      removeDuplicates();
    }
  }

behreajj

  color evaluate(float percent) {
    int sz = colors.size();
    if (sz == 0) {
      return 0x00000000;
    }
    
    float diff;
    float fraction;
    ColorStop current;
    ColorStop prev;

behreajj

Gradient grad;
float fw;

void setup() {
  size(1024, 128);
  fw = float(width);
  grad = new Gradient(
    new ColorStop(0.75, 0xffff007f), 
    new ColorStop(0.333, 0xff7f00ff), 
    new ColorStop(0.5, 0xff00ff00), 

behreajj

  colorMode(HSB, 359, 99, 99);
  grad = new Gradient(new ColorStop(0, color(29, 99, 99)), 
    new ColorStop(0.33, color(329, 99, 99)), 
    new ColorStop(0.66, color(89, 99, 99)), 
    new ColorStop(1, color(269, 99, 99)));

behreajj

size(512, 512);
background(0xffffffff);
noStroke();
colorMode(HSB, 359, 99, 99);
ellipseMode(RADIUS);
textAlign(CENTER, CENTER);

int count = 16;

float centerX = width * 0.5; 

behreajj

size(600, 200);
rectMode(CORNERS);
ellipseMode(RADIUS);
noStroke();

int[] blendModes = { BLEND, ADD, SUBTRACT }; 

// Red, Green, Blue, Cyan, Magenta, Yellow
color[] palette = { 0x55ff0000, 0x5500ff00, 
  0x550000ff, 0x5500ffff, 0x55ff00ff, 

behreajj

int count = 16;
float w;
color[] palette;

void setup() {
  size(512, 128);
  noStroke();
  rectMode(CORNERS);
  
  palette = genPalette(count,