hue RGB - Java 2D Graphics

Java examples for 2D Graphics:Color RGB

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Description

hue RGB

Demo Code

/*/*from   ww w.j  a  va 2s  .c  o m*/
 * This is a fork of GHEAT_JAVA https://github.com/varunpant/GHEAT-JAVA
 * <p>
 * The MIT License
 * <p>
 * Copyright (c) 2014 Varun Pant
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 * <p>
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * <p>
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * <p>
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        float v1 = 2.45678f;
        float v2 = 2.45678f;
        float vH = 2.45678f;
        System.out.println(hue2RGB(v1, v2, vH));
    }

    private static float hue2RGB(float v1, float v2, float vH) {
        if (vH < 0.0f) {
            vH += 1.0f;
        }
        if (vH > 1.0f) {
            vH -= 1.0f;
        }
        if ((6.0f * vH) < 1.0f) {
            return (v1 + (v2 - v1) * 6.0f * vH);
        }
        if ((2.0f * vH) < 1.0f) {
            return (v2);
        }
        if ((3.0f * vH) < 2.0f) {
            return (v1 + (v2 - v1) * ((2.0f / 3.0f) - vH) * 6.0f);
        }
        return (v1);
    }
}

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