Pegasus: 2D Geometric Drawing System

With S.Kawachiya, S.Matsuoka, supervised by H.Tanaka

Pegasus is a prototype drawing system for rapid geometric design. Using Pegasus, a user can construct precise geometric diagrams easily without struggling with complicated editing commands. Two novel interaction techniques are introduced: interactive beautification and predictive drawing. Interactive beautification receives the user's free stroke input and beautifies it by considering possible geometric constraints among segments by generating multiple candidates to prevent recognition errors. Predictive drawing predicts the user's next drawing operation based on the spatial relationship among existing segments on the screen.

Publications

Takeo Igarashi, Satoshi Matsuoka, Sachiko Kawachiya, Hidehiko Tanaka
"Interactive Beautification: A Technique for Rapid Geometric Design",
UIST'97 ( ACM Annual Symposium on User Interface Software and Technology)
Banff, Canada, 14-17 October, 1997, pp.105-114. PS , PDF
Takeo Igarashi, Satoshi Matsuoka, Sachiko Kawachiya, Hidehiko Tanaka
"Pegasus: A Drawing System for Rapid Geometric Design",
CHI'98 Summary (ACM Conference on Human Factors in Computing Systems)
Los Angels, U.S.A, 18-23 April, 1998, pp.24-25. PS , PDF

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Takeo Igarashi : takeo@mtl.t.u-tokyo.ac.jp