Scales a vector by param using given result float[], result = vector * scale - Java java.lang

Java examples for java.lang:Math Vector

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Description

Scales a vector by param using given result float[], result = vector * scale

Demo Code

/**/*  ww  w.ja  va2s  . c om*/
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//package com.java2s;

public class Main {
    /**
     * Scales a vector by param using given result float[], result = vector * scale
     * @param result vector for the result, may be vector (in-place)
     * @param vector input vector
     * @param scale single scale constant for all vector components
     * @return result vector for chaining
     */
    public static float[] scaleVec2(final float[] result,
            final float[] vector, final float scale) {
        result[0] = vector[0] * scale;
        result[1] = vector[1] * scale;
        return result;
    }

    /**
     * Scales a vector by param using given result float[], result = vector * scale
     * @param result vector for the result, may be vector (in-place)
     * @param vector input vector
     * @param scale 2 component scale constant for each vector component
     * @return result vector for chaining
     */
    public static float[] scaleVec2(final float[] result,
            final float[] vector, final float[] scale) {
        result[0] = vector[0] * scale[0];
        result[1] = vector[1] * scale[1];
        return result;
    }
}

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