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dc.rights.licenseRestricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.
dc.contributorFreeman, Herbert
dc.contributorWozny, M. J. (Michael J.)
dc.contributorKaufman, Howard, 1940-
dc.contributorCaviness, Bobby F.
dc.contributor.authorLevin, Joshua Zev
dc.date.accessioned2021-11-03T08:58:43Z
dc.date.available2021-11-03T08:58:43Z
dc.date.created2018-06-12T13:22:01Z
dc.date.issued1980-05
dc.identifier.urihttps://hdl.handle.net/20.500.13015/2155
dc.descriptionMay 1980
dc.descriptionSchool of Engineering
dc.description.abstractQUISP outputs line drawings of the quadric-surface bodies, with optional removal of hidden curves. All the lines in the drawings are projections of Quadric-Surface Intersection Curves (QSICs), which are calculated using parametric methods.
dc.description.abstractBecause these quadric-surface bodies are so useful for modelling man-made objects, it is important that any Computer-Aided Design (CAD) system be able to work with such bodies. The "QUISP" processor described here was designed to accept descriptions of quadric-surface bodies in either character-string form (via the "QUADRIL" language), or through interactive input.
dc.description.abstractQUADRIL has a mixture of English-like and algebraic syntax. It may be used to specify quadric-surface bodies and then to display them on a variety of media. The interactive input allows commands to be entered by push-buttons to accomplish anything that QUADRIL can do.
dc.description.abstractMost man-made objects can be closely approximated by bodies whose surfaces are composed of portions of second-order (quadric) surfaces. These surfaces include elliptic, hyperbolic, and parabolic cylinders, as well as quadric cones, paraboloids, hyperboloids, ellipsoids, and pairs of planes. Simple planes (first-order surfaces) may be included as degenerate quadric surfaces.
dc.language.isoENG
dc.publisherRensselaer Polytechnic Institute, Troy, NY
dc.relation.ispartofRensselaer Theses and Dissertations Online Collection
dc.subjectElectrical and systems engineering
dc.titleQUISP : A computer processor for the design and display of quadric-surface bodies
dc.typeElectronic thesis
dc.typeThesis
dc.digitool.pid178877
dc.digitool.pid178878
dc.digitool.pid178879
dc.rights.holderThis electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
dc.description.degreePhD
dc.relation.departmentDept. of Electrical and Systems Engineering


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