Snapshots and Bookmarks as a Graphical Design History

Year: 2002
Editor: Marjanovic D.
Author: Verlinden, J. C.; Igarashi, T.; Vergeest, J. S. M.
Section: Supportive technologies
Page(s): 567-572


This paper presents a technique to enhance 3D modelling systems by displaying the design history during a design session. It offers the opportunity to select and annotate various stages of a model. After a short survey of commercial applications, two modelling concepts are introduced: snapshots and bookmarks. A Java implementation was made based on Teddy, a sketch-based 3D modeller. Snapshots are displayed in a storyboard. For analysis purposes, sessions can be visualized as a graph.
Exploratory experiments were performed, which show its use. To conclude, we state that this technique can be useful for both new modelling paradigms and existing CAD systems. Future issues include history visualization, navigation, and collaborative use.

Keywords: Design history, visualisation, sketch-based modelling


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