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A Top Down Method for Interactive Drawing
(Blackwell Publishing Ltd and the Eurographics Association, 1988)
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 ...
Liberation from Rectangles: A Tiling Method for Dynamic Modification of Objects on Raster Displays
(Eurographics Association, 1988)
When graphics objects (also called segments) are used on raster display hardware, problems arise because of the mismatch between the high level requirements of object manipulation, and the low level representation from ...