Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1996-01-11
1998-03-31
Nguyen, Phu K.
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
G06F 1500
Patent
active
057343837
ABSTRACT:
According to the present invention, a solid model could be automatically generated with a feeling of sketch.
When point sequence data inputted from a tablet are inputted in order to sketch a solid model, graphic recognition processing is performed. Next, a recognized graphic is subjected to automatic editing processing, and then a model generation plane for the graphic is generated. Next, a projection line for connecting a view point to a point on the tablet is generated in a coordinate system in a three-dimensional space. An intersection point between the generated model generation plane and the projection line is determined to derive edges, etc. Next, solid model data are derived by using the derived edges, etc., and the data are stored. The stored data (three-dimensional) are converted into two-dimensional coordinates, and they are displayed on the tablet.
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Yu Z. Z. et al., "Elecpapen: An Integrated and Intelligent User Interface System for CAD." Proceedings of HCI Intenational '93, Orlando, Florida, 1993.
Negroparte, N., et al., "Munch: An experiment in Sketch Recognition," Proceedings of the Edru 3/Ar 9 conference, Los Angeles, California, 1972.
Nguyen Phu K.
Takenaka Corporation
Vo Cliff N.
LandOfFree
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