Touch controlled zoom and pan of graphic displays
First Claim
1. A method of touch controlled zoom and pan of a graphic display comprising the steps of:
- determining a function and a touch point with respect to the graphic display by touching a touch screen in one of a plurality of defined areas;
zooming the graphic display about the touch point according to the rotation of a rotary encoder knob if the function is a zoom function;
panning the graphic display according to the rotation of the rotary encoder knob if the function is a pan function.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch controlled zoom and pan of graphic displays is achieved using only a touch screen and rotary knob by designating various areas on a touch screen. Touching one of the designated areas determines the function to be performed—zoom along one axis or in two dimensions or pan along one axis or in two dimensions. The zoom or pan is then performed in response to the rotation of a rotary encoder knob. For panning dragging the touch along an axis in lieu of rotating the rotary encoder knob performs the function. Alternatively the same designated areas may be used to determine either the zoom or pan function by using either a “touch and hold” technique for zoom or a “touch and go” technique for pan.
75 Citations
9 Claims
-
1. A method of touch controlled zoom and pan of a graphic display comprising the steps of:
-
determining a function and a touch point with respect to the graphic display by touching a touch screen in one of a plurality of defined areas;
zooming the graphic display about the touch point according to the rotation of a rotary encoder knob if the function is a zoom function;
panning the graphic display according to the rotation of the rotary encoder knob if the function is a pan function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification