Disambiguation of Multitouch Gesture Recognition for 3D Interaction

摘要

A multitouch device can interpret and disambiguate different gestures related to manipulating a displayed image of a 3D object, scene, or region. Examples of manipulations include pan, zoom, rotation, and tilt. The device can define a number of manipulation modes, including one or more single-control modes such as a pan mode, a zoom mode, a rotate mode, and/or a tilt mode. The manipulation modes can also include one or more multi-control modes, such as a pan/zoom/rotate mode that allows multiple parameters to be modified simultaneously.

主权项

1. A method, comprising:
at an electronic device with a touch-sensitive surface and a display: displaying a map on the display; while displaying the map on the display, detecting a touch input on the touch-sensitive surface that includes movement of one or more contacts on the touch-sensitive surface; and, in response to detecting the touch input:
in accordance with a determination that the touch input meets panning criteria, wherein the panning criteria include a requirement that the touch input include at least a first number of contacts in order for the panning criteria to be met, panning the map in accordance with the movement of the one or more contacts;in accordance with a determination that the touch input meets tilting criteria, wherein the tilting criteria include a requirement that the touch input include at least a second number of contacts, greater than the first number of contacts, in order for the tilting criteria to be met, tilting the map in accordance with the movement of the contacts; and,in accordance with a determination that the touch input meets multi-control criteria, wherein the multi-control criteria include a requirement that the touch input include at least the second number of contacts in order for the multi-control criteria to be met, panning and zooming the map in accordance with the movement of the contacts.