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公开(公告)号:CA2036273C
公开(公告)日:1996-06-04
申请号:CA2036273
申请日:1991-02-13
Applicant: IBM
Inventor: ALSTAD JOHN KARL , HICKE JEFFREY ALAN , LASCELLES MARTIN CHRISTOPHER , SHERMAN STEPHEN PAUL , WONG MICHAEL
Abstract: Correlation of two-dimensional displayed points of an axonometric projection with corresponding three-dimensional points of the projected shapes. A point on a display screen surface is selected and the screen coordinates of the points of the three-dimensional shape are found by converting successive points of the shape of two-dimensional screen equivalents. Comparing the converted coordinates to those of the selected point identifies the shape point corresponding to the selected shape.