Constraints and Direct Manipulation for Specifying Object Transformations
نویسنده
چکیده
A method for integrating constraints and interactive manipulation for three dimensional design is discussed. Constraints are specified and maintained interactively and the results of each operation presented immediately to the user. Partially constrained objects may be interactively dragged and constraints propagated throughout the scene in real time to reflect changes. The techniques have been implemented in Sced, a tool for solid modeling and scene composition.
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