Java Color Interpolate interpolate(Color start, Color end, float p)

Description

interpolate

License

Apache License

Declaration

public static Color interpolate(Color start, Color end, float p) 

Method Source Code

//package com.java2s;
/*//from w  w w  .j  a  v  a 2  s.  co m
 * #%L
 * alexandria-markup
 * =======
 * Copyright (C) 2016 - 2018 HuC DI (KNAW)
 * =======
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import java.awt.*;

public class Main {
    public static Color interpolate(Color start, Color end, float p) {
        float[] startHSB = Color.RGBtoHSB(start.getRed(), start.getGreen(), start.getBlue(), null);
        float[] endHSB = Color.RGBtoHSB(end.getRed(), end.getGreen(), end.getBlue(), null);

        float brightness = (startHSB[2] + endHSB[2]) / 2;
        float saturation = (startHSB[1] + endHSB[1]) / 2;

        float hueMax = 0;
        float hueMin = 0;
        if (startHSB[0] > endHSB[0]) {
            hueMax = startHSB[0];
            hueMin = endHSB[0];
        } else {
            hueMin = startHSB[0];
            hueMax = endHSB[0];
        }

        float hue = ((hueMax - hueMin) * p) + hueMin;

        return Color.getHSBColor(hue, saturation, brightness);
    }
}

Related

1. interpolate(Color a, Color b, float f)
2. interpolate(Color b, Color a, float t)
3. interpolate(Color c1, Color c2, float fracFromC1)
4. interpolate(Color colour1, Color colour2, float colour2Fraction)
5. interpolate(Color low, Color high, double min, double max, double v)
6. interpolate(double factor, Color bottomCol, Color topCol)
7. interpolate(double x, double y, float[] colorLL, float[] colorLR, float[] colorUL, float[] colorUR)
8. interpolate(final Color aBaseColor, final Color aSecondaryColor, final float aDelta)
9. interpolate(final Color from, final Color to, final double t)