Polymorphic cataloguing and interactive 3D visualization for multiple context of digital content: MoSaIC

In this paper, we propose two methods of interactive visualization of the MoSaIC catalogue. We proposed a conceptual modeling for manifold relationships among digital content files as polymorphic catalogues and its visualization system (MoSaIC-II) before. In the modeling, two structures are provided to express the relationships. One is “grouping objects”. The other is “associating between two objects”. The relationship is constructed by using the combination of two structures, and it is described by using directed graph called a MoSaIC catalogue. Multiple catalogues can be connected by shared objects polymorphically. To visualize the catalogue, we propose two methods which are polymorphic topology view and layer view in MoSaIC system using 3D computer graphics. In the previous method, some objects might be overlapped depending on object connections. Then a lot of objects and complex connection of edges can users feel complicated. Using the new methods, object overlap and the complexity of catalogue and object connections can be improved. In the polymorphic topology view, users can see topology of connected objects avoiding object overlaps. Furthermore, we propose the layer view to show objects aligned by a catalogue creator. In the layer view, users can see connected objects which are aligned and exhibited on each catalogue layer. In this method, a complex connection of edges is improved and comparatively a lot of objects can be handled.