Second Touch Zoom Control
AssigneeOnshape Inc.
InventorMichael S. Morton
Life of this patent
Estimating the term…
Abstract
A second touch zoom solution allows maintaining selection control, and movement of a selection point, during zoom operations not possible through traditional pinch-zoom. A first finger touch to a touch screen establishes a hot spot, selection, or one-finger gesture. Before the first finger is lifted from the touch screen, a second finger is placed on the screen and serves as a zoom control. Dragging the second finger away from the first zooms in; toward the first zooms out. Dragging the first finger does not affect the zoom, even if the motion changes the difference between the two fingers. When the second finger is lifted, the zoom level stays where it is. When the first finger is lifted, the zoom returns to the zoom level before the gesture began.
Claims20
A method of touch screen zoom control, comprising:
- establishing a hot spot through a first touch to a touch screen display;
- detecting a second touch on the touchscreen display;
- zooming the display in on movement of the second touch location away from the hot spot;
- zooming the display out on movement of the second touch location towards the hot spot;
- centering all zoom actions on the hot spot such that the hot spot location remains at the location of the first touch;
- maintaining zoom at a current zoom level if contact of the second touch is removed from the display;
- and
- reverting zoom to an original zoom level equivalent to the display prior to any zoom in or zoom out actions if contact of the first touch is removed from the display.
A touch-screen display connected to a computer device, the computer device accessing at least one non-transitory computer-readable medium containing computer program instructions, wherein the computer program instructions are executable by at least one computer processor of the computer device to perform a method of controlling zoom on the touch-screen display, the method comprising:
- establishing a hot spot through detecting a first touch to a touch screen display;
- detecting a second touch on the touchscreen display;
- zooming the display in on movement of the second touch location away from the hot spot;
- zooming the display out on movement of the second touch location towards the hot spot;
- centering all zoom actions on the hot spot such that the hot spot location remains at the location of the first touch;
- maintaining zoom at a current zoom level if contact of the second touch is removed from the display;
- and
- reverting zoom to an original zoom level equivalent to the display prior to any zoom in or zoom out actions if contact of the first touch is removed from the display.
Dependencies are inferred from the claim text.