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Article A Top Down Method for Interactive Drawing

Author(s): M. Slater.
Article: Computer Graphics Forum, Vol. 7, No. 4, pp. 323--329, 1988.
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Traditional interactive drawing programs adopt a bottom-up approach, allowing the user to construct a picture by the use of discrete tools, for example, lines, circles, rectangles, and so on. This paper presents a different approach, which allows users to construct graphical objects by stretching and cutting existing objects. The representation is simply implemented, based on a ring of cubic Bezier curves, and use of the de Casteljau algorithm.

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