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As the use of 3D information presentation becomes more prevalent, the need for effective viewing tools grows accordingly. Existing viewing tools for 3D data address two problems: one, the fact that 3D displays naturally contain the potential for occlusion, and two, the need to provide a view that reveals the details of current interest still set in their context. Recent years have seen considerable research towards developing detail in context tools for 2D information layout. Each technique results in a distinctive method for visually organizing the data. This article compares the resulting display patterns both in their intended 2D space and in a naive extrapolation to 3D. This review and comparison leads directly to a 3D visual access tool that deals effectively with occlusion and is capable of providing 3D detail in context views. This tool provides a novel solution to the problem of occlusion in internal access by clearing a line of sight to any chosen region of interest.

D. J. Cowperthwaite, F. D. Fracchia and M. S. Carpendale, "Extending Distortion Viewing from 2D to 3D," in IEEE Computer Graphics and Applications, vol. 17, no. , pp. 42-51, 1997.
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