public static Vector3f[] getPositions(int count, long seed) {
        Random rnd = new Random(seed);
        Vector3f[] vectors = new Vector3f[count];
        for (int i = 0; i < count; i++) {
            vectors[i] = new Vector3f((rnd.nextFloat() - 0.5f) * poiRadius,
                    (rnd.nextFloat() - 0.5f) * poiRadius,
                    (rnd.nextFloat() - 0.5f) * poiRadius);
        }
        return vectors;
    }
WorldOfInception - Find the galaxy center ;)

@author normenhansen
jme3-examples/src/main/java/jme3test/games/WorldOfInception.java