Java Utililty Methods Color Create

List of utility methods to do Color Create

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Description

The list of methods to do Color Create are organized into topic(s).

Method

Color[]generateColorRamp(int n)
Generates a red to blue color ramp with of 'n' colors 
Color[] cols = new Color[n];
for (int i = 0; i < n; i++) {
    cols[i] = Color.getHSBColor((float) i / (float) (n * 1.5), 0.75f, 1.0f);
return cols;
Color[]generateColourSet(Color[] palette, int numColorBands)
Gets a version of this palette with the given number of color bands, either by subsampling or interpolating the existing palette 
Color[] targetPalette;
if (numColorBands == palette.length) {
    targetPalette = palette;
} else {
    targetPalette = new Color[numColorBands];
    targetPalette[0] = palette[0];
    targetPalette[targetPalette.length - 1] = palette[palette.length - 1];
    if (targetPalette.length < palette.length) {
...
ColorgenerateFireMapColor(double min, double max, double value)
generate Fire Map Color 
assert value >= min && value <= max;
if (value < min || value > max) {
    throw new IllegalArgumentException("Value must be between min and max values, it was not.");
double power = (value - min) / (max - min); 
double H = Math.abs(0.138 - power * 0.138); 
double S = 1;
double B = Math.abs(0.5 - power * 0.5) + 0.5; 
...
ColorgenerateGrayScaleColor(double min, double max, double value)
generate Gray Scale Color 
assert value >= min && value <= max;
if (value < min || value > max) {
    throw new IllegalArgumentException("Value must be between min and max values, it was not.");
double power = (value - min) / (max - min); 
return Color.getHSBColor(0, 0, 1 - (float) power);
ColorgenerateGreyColor(double value, double minValue, double maxValue)
generate Grey Color 
int colorValue = (int) ((value + 1.0D) / 2.0D * 245.0D + 10.0D);
colorValue = 255 - colorValue;
return new Color(colorValue, colorValue, colorValue);
StringgenerateHexolor(Color color)
generate Hexolor 
String r = Integer.toHexString(color.getRed());
if (r.length() < 2) {
    r = "0" + r;
String g = Integer.toHexString(color.getGreen());
if (g.length() < 2) {
    g = "0" + g;
String b = Integer.toHexString(color.getBlue());
if (b.length() < 2) {
    b = "0" + b;
return "#" + r + g + b;
Color[]generateNColors(int numColors)
Generates a series of colors such that the distribution of the colors is (fairly) evenly spaced throughout the color spectrum. 
Color[] table = new Color[numColors];
if (numColors == 1) {
    table[0] = Color.red;
} else {
    float hueMax = (float) 0.85;
    float sat = (float) 0.8;
    for (int i = 0; i < numColors; i++) {
        float hue = hueMax * i / (numColors - 1);
...
intgenerateNextValidColor()
generate Next Valid Color 
int step = 1;
redValue += step;
if (redValue == 256) {
    greenValue += step;
    redValue = 0;
    if (greenValue == 256) {
        blueValue += step;
        greenValue = 0;
...
ListgeneratePallete(final int colours)
generate Pallete 
final List<Color> pallete = new ArrayList<Color>(colours);
for (int i = 0; i < colours; i++) {
    pallete.add(generateColour());
return pallete;
ColorgenerateRGBRandomColor()
Generate random RGB color. 
Random random = new Random();
int red = random.nextInt(256);
int green = random.nextInt(256);
int blue = random.nextInt(256);
return new Color(red, green, blue);