Touch zoom in/out for a graphics display
AssigneeTektronix, Inc.
InventorsKathryn A. Engholm, Mark D. Demory
Life of this patent
Estimating the term…
Abstract
A method of zooming in/out for a graphics image on a display screen encompasses drawing a rectangle on the display screen, either entirely within a display area of the display screen for two-dimensional zoom in/out or along one axis within a peripheral area of the display screen for one-dimensional zoom in/out. Once the rectangle is drawn by dragging from one corner to an opposite corner, tapping or clicking within the rectangle causes a zoom in action and tapping or clicking outside the rectangle causes a zoom out action.
Claims3
A method of performing a one-dimensional zoom in/out function for a graphics image on a display screen, the display screen having a display area and having a peripheral area along an axis of the display screen, comprising the steps of:
- drawing a rectangle to encompass a portion of the graphics image within the display area by defining a length along the peripheral area;
- and
- contacting the display screen at a point either inside or outside the rectangle, the point determining either a zoom-in or zoom-out action for the one-dimensional zoom in/out function, the zoom-in action expanding the graphics image along the axis so that the portion of the graphics image fills the display area and the zoom-out action compressing the graphics image along the axis so that the graphics image fits within the rectangle with portions of the graphics image formerly outside the display area now being within the display area.
Dependencies are inferred from the claim text.