THE CUTPLANE : A TOOL FOR INTERACTIVE SOLID MODELIN G LAURENCE EDWARD S WILLIAM KESSLE R LARRY LEIFE R ABSTRAC T Today, most solid modeling systems are used only in th e final stages of design, where iterations are driven by analysis rather than creative exploration of alternativ e solutions . These systems have complex interfaces, slo w response, and do not provide a convenient way o f specifying a three dimensional position using a two dimensional display screen . As such they are not viabl e alternatives to visualization methods traditionally used in early design . This paper presents a geometric modeling system which incorporates a new concept for intuitively and unambiguously specifying and manipulating points o r features in three dimensional space . The central concept, the Cutplane, consists of a plane that moves through spac e under control of a mouse or similar input device . The intersection of the plane and any object is highlighted, and only this highlighted section can be selected fo r manipulation . Selection is accomplished with a crosshai r that is constrained to remain within the plane, so that th e relationship between the crosshair and the feature of
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The Cutplane: a tool for interactive solid modeling
Edwards, Laurence; Kessler, William; Leifer, Larry
Follow ACM SIGCHI Bulletin
, Volume 20 (2)
Association for Computing Machinery – Oct 1, 1988
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