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A Top Down Method for Interactive Drawing
Author(s) -
Slater Mel
Publication year - 1988
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/j.1467-8659.1988.tb00633.x
Subject(s) - construct (python library) , bézier curve , computer science , representation (politics) , computer graphics (images) , engineering drawing , theoretical computer science , programming language , mathematics , geometry , engineering , politics , political science , law
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.