G - Physics – 06 – F
Patent
G - Physics
06
F
375/18
G06F 9/28 (2006.01) G06T 15/30 (2006.01)
Patent
CA 1238434
ABSTRACT OF THE DISCLOSURE An electronic data processing pipeline system and method for processing encoded control points representing graphical illustrations. The pipeline comprises a number of separate micro-programmed circuit cards, each of which are programmed to perform a specific processing operation. A command is sent to a matrix maker card which calculates a transformation matrix representing the desired transformation. Electronic representations of control data points are then trasmitted to the pipeline for processing. These control points are 3D points comprising both the vertices which terminate linear edges of the illustration and the control points corresponding to curved edges of the illustration. The control points are then multiplied by the transformation matrix in a vector multiplier circuit card. They are then clipped to the planes of the viewing frustum and are mapped onto the 2D viewing window. The clipped control points are then exploded to generate a plurality of small line segments representing each of the curved edges of the illustration. The appropriate portions of the illustration are rendered as a line drawing and the processed data is converted into a form which is appropriate for scan conversion.
466558
Andrews David H.
Lucht Phillip H.
Putnam Leland K.
Bosch (robert) Corporation
Ridout & Maybee Llp
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