editor

Diagram manipulation in conventional CAD systems requires frequent mode switching and explicit placement of the pivot for rotation and scaling. In order to simplify this process, we propose an interaction technique called integrated manipulation, where the user can move, rotate, and scale without mode switching. In addition, the pivot for rotation and scaling automatically snaps to a contact point during moving operation. We performed a user study is performed using our prototype system and a commercial CAD system. The results showed that users could perform a diagram manipulation task much more rapidly using our technique.

MediaMosaic is an editing environment developed to provide several features that are either unavailable or not adequately addressed in current editing systems. First, it is a multimedia editor of an open architecture. General media are inserted in documents by embedded virtual screens. Second, it allows users to do markup editing in context. The marked comments are overlapped and attached to the commented areas. Third, it provides a mechanism to allow users to bring data from more than one source to a single document. The views of the included data can be tailored. Fourth, users can work on an included medium through its embedded view or through another complete and duplicated view. It isolates and simplifies the interface design of individual media editors.