@Override
    public void write(JmeExporter e) throws IOException {
        super.write(e);
        OutputCapsule c = e.getCapsule(this);
        c.write(size, "size", 0);
        c.write(totalSize, "totalSize", 0);
        c.write(patchSize, "patchSize", 0);
        c.write(stepScale, "stepScale", null);
        c.write(offset, "offset", new Vector2f(0,0));
        c.write(offsetAmount, "offsetAmount", 0);
        c.write(quadrant, "quadrant", 0);
        //c.write(lodCalculatorFactory, "lodCalculatorFactory", null);
        //c.write(lodCalculator, "lodCalculator", null);
    }
Retrieve all Terrain Patches from all children and store them
in the 'holder' list
@param holder must not be null, will be populated when returns
jme3-terrain/src/main/java/com/jme3/terrain/geomipmap/TerrainQuad.java