英文字典中文字典51ZiDian.com

The Free On-line Dictionary of Computing (foldoc)

A program that allowed users to draw on a screen with a {light
pen}. It supported constraints (e.g. drawing a constrained
ellipse produced a circle). It also had some {computer aided
design} features (e.g. computing loads on beams).

Sketchpad was the subject of {Ivan E. Sutherland}'s 1963 {MIT}
PhD thesis, which opened the field of {computer graphics}. It
was the progenitor of computer drawing packages like {MacDraw}
or {Adobe Illustrator}. There is a film of Sketchpad in
action.

It solved {constraints} using {value inference} and introduced
the "{ring}" list structure.

["Sketchpad: A Man-Machine Graphical Communication System",
I.e. Sutherland, MIT Lincoln Lab, TR 296 (Jan 1963)].

[Sammet 1969, p. 678].

(1995-02-14)

请选择你想看的字典辞典：

单词	字典	翻译
sketchpad	查看　sketchpad　在百度字典中的解释	百度英翻中〔查看〕
sketchpad	查看　sketchpad　在Google字典中的解释	Google英翻中〔查看〕
sketchpad	查看　sketchpad　在Yahoo字典中的解释	Yahoo英翻中〔查看〕