Cooperative design and data management of virtual museum based on Voronoi diagram

This paper mainly discusses how to design a virtual museum system used by many users at the same time, and how to manage the scene data. To a 3D indoor scene, the empty scene (only the building) without other objects such as collections can be created by sweeping a 2D polygon along an axis which is perpendicular to the horizontal plane. We can create the scene polygon´s Voronoi diagram, which subdivides the polygon into some cells called Voronoi regions by the proximity characteristic. An edge of the polygon corresponding to a wall of the building has its own Voronoi region where all the points are nearest to the edge than others. Hence, every user can select one Voronoi region to lay out collections such as cultural relics on the exhibition platform and every collection is saved by the Voronoi region in which it is laid out. Based on the scene polygon´s Voronoi diagram, the system can also support multi-user cooperative interaction in the created scene very well. The work also can be used to create virtual art gallery, product exhibition hall and so on.