public void setAtomCoordinates(int index, float x, float y, float z, int argb) {
		Frame frame = modelManager.frame;
		if (frame == null)
			return;
		Atom atom = frame.getAtomAt(index);
		atom.x = x;
		atom.y = y;
		atom.z = z;
		atom.colixAtom = Graphics3D.getColix(argb);
	}