Graphic movement control system on display screen

Details Graphic movement control system on display screen Graphic movement control system on display screen

1993-01-19

1995-01-10

Powell, Mark R.

G06F 1560

Patent

active

053815254

ABSTRACT:
A graphics movement control system on a display screen controls the intervals between drawing graphics according to the number of picture elements of the graphics when the graphics are moved on a display screen using a pointing device such as a mouse, etc. in an editor for editing a block diagram and a circuit diagram through a workstation, etc. When graphics displayed on a display screen are moved by a pointing device, the drawing intervals between in moving the graphics are controlled. Thus, the number of times to draw the graphics can be controlled between the starting point and the ending point of the movement on the display screen. That is, the complexity of the graphics is determined by the number of picture elements forming the graphics. The intervals between drawing graphics on the display screen are lengthened for those having a large number of picture elements so that the number of times to draw the graphics up to the final movement position is reduced. A quick movement of a pointing device can be traced even for complicated graphics by reducing the number times to draw graphics up to the final movement position.

REFERENCES:
patent: 4688181 (1987-08-01), Cottrell et al.
patent: 5189633 (1993-02-01), Bonadio
IBM Tech. Disclosure Bull., vol. 24, No. 2, Jul. 1981, pp. 1072-1074; D. F. Bantz et al; "Strategy for Fast Interaction with a Complex Display".
IBM Tech. Disclosure Bull., vol. 25, No. 2, Jul. 1982, p. 469; M. N. Day; "Progressive Visibility Function for a Display Station Cursor".
Foley, J. D., Van Dam, A., Fundamentals of Interactive Computer Graphics, pp. 80, 81, 208, 209, 212.

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