公开(公告)号：CA2060039C

公开(公告)日：1999-02-02

申请号：CA2060039

申请日：1992-01-24

Applicant: ATI TECHNOLOGIES INC

Inventor： HARTOG ADRIAN H ,  DAVIES ROBIN E R

IPC: G06T15/30 ,  G06T11/20

Abstract: A method for drawing lines on a graphics device in such manner in that only those points lying inside a specified rectangular area of the device are drawn. Predetermined digital outcodes are generated for defining the endpoints of the lines and a decision is made whether to draw or not draw the lines based on the relationship of the endpoints with respect to both the specified rectangular area of the device, and a second larger rectangular area of the device.

公开(公告)号：CA2060039A1

公开(公告)日：1993-07-25

申请号：CA2060039

申请日：1992-01-24

Applicant: ATI TECHNOLOGIES INC

Inventor： HARTOG ADRIAN H ,  DAVIES ROBIN E R

IPC: G06T15/30 ,  G06F15/66 ,  G06F15/72

Abstract: A method for drawing lines on a graphics device in such manner in that only those points lying inside a specified rectangular area of the device are drawn. Predetermined digital outcodes are generated for defining the endpoints of the lines and a decision is made whether to draw or not draw the lines based on the relationship of the endpoints with respect to both the specified rectangular area of the device, and a second larger rectangular area of the device.