public void fill(int startIndex, float[] store) {
        for (int i = 0; i < store.length; i++) {
            store[i] = get(startIndex + i, null);
        }
    }
creates a compact vector array
@param dataArray the data array
@param index the indices
jme3-core/src/main/java/com/jme3/animation/CompactFloatArray.java