Java Color Alpha buildColorRamp(Color startColor, Color endColor, int numColors, int alpha)

Description

build Color Ramp

License

Open Source License

Declaration

public static Color[] buildColorRamp(Color startColor, Color endColor, int numColors, int alpha) 

Method Source Code

//package com.java2s;
import java.awt.Color;

public class Main {
    public static Color[] buildColorRamp(Color startColor, Color endColor, int numColors, int alpha) {
        Color[] colors = new Color[numColors];

        for (int j = 0; j < colors.length; j++) {
            float ratio = (float) j / (float) colors.length;
            int red = (int) (endColor.getRed() * ratio + startColor.getRed() * (1 - ratio));
            int green = (int) (endColor.getGreen() * ratio + startColor.getGreen() * (1 - ratio));
            int blue = (int) (endColor.getBlue() * ratio + startColor.getBlue() * (1 - ratio));
            colors[j] = new Color(red, green, blue, alpha);
        }// w ww .  j  a  va  2 s. c  om

        return colors;
    }
}

Related

1. applyColorFilter(Image image, Color color, float alpha)
2. changeAlpha(Color c, double alpha)
3. changeAlpha(Color c, double newAlpha)
4. changeAlpha(Color c, int alpha)
5. changeColorAlpha(@Nonnull Color color, int newAlpha)