A method for compressing a cloud of points with imposed error constraints at each point is disclosed. The three primary color luminescent areas are arranged in the extending direction of the display electrode pairs in a successive manner and an image element is composed by the three unit luminescent areas defined by these three luminescent areas and address electrodes intersecting these three luminescent areas. The resource manager is configured to manage device resources that are distributed in heterogeneous networks, such as resources distributed in networks using mixed Ethernet, 1394, 802.