Computer graphics processing and selective visual display system – Computer graphics processing – Graph generating
Patent
1998-04-20
2000-12-05
Nguyen, Phu K.
Computer graphics processing and selective visual display system
Computer graphics processing
Graph generating
G06F 1500
Patent
active
061573884
ABSTRACT:
A method for inserting an object into (77) and deleting an object from (100) a computer-generated graphics chart (26 or 58) is provided. The method includes responding to a command indicating a new object (40) is to be inserted into the chart (26) by determining whether the new object (40) is pierced by a line (32) in the chart (26). If the new object (40) is pierced by a line (32) in the chart (26) then the line (32) piercing the object (40) is redefined to be two lines, including a line entering (32) the new object (40) and a line exiting (54) the new object. The two lines are appropriately routed to source and destination points of the original line so that the two lines maintain the flow of the chart (26). The method also responds to a command indicating an object (64) is to be deleted from the chart (58) by determining whether the deleted object (64) has a first line (66) entering it and a second line (72) exiting it. The method includes removing the deleted shape (64) from the chart (58), and routing one of the first line (66) and second line (72) from the original source point (68) of the first line (66) to the original destination point (76) of the second line (72) while maintaining the flow of the chart (58).
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Nguyen Phu K.
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