@Override
    public float[] getScaledHeightMap() {
        float[] hm = new float[heightData.length];
        for (int i=0; i<heightData.length; i++) {
            hm[i] = heightScale * heightData[i];
        }
        return hm;
    }
Build a new array of height data with the scaled values.
@return a new array
jme3-terrain/src/main/java/com/jme3/terrain/heightmap/AbstractHeightMap.java