public void translateAtomsTo(Point3f p) {
		if (iAtom <= 0)
			return;
		Point3f center = getCenterOfAtoms();
		for (int i = 0; i < iAtom; i++) {
			atom[i].rx += p.x - center.x;
			atom[i].ry += p.y - center.y;
			atom[i].rz += p.z - center.z;
		}
	}