Scaling and rotating combined touch method, device and system

Abstract

The invention discloses a scaling and rotating combined touch method, device and system. The scaling and rotating combined touch method comprises the steps of: detecting operating information of a touch point, obtaining a scaling matrix and a rotating matrix; calculating the scaling matrix and the rotating matrix through a matrix multiplication to obtain a combination matrix, and realizing the operation of scaling and / or rotating by applying the combination matrix. By adopting the scaling and rotating combined touch method, device and system, compared with operations of the traditional mouse and key, the multi-point touch technology can realize the functions of scaling and rotating more visually in a more humanized manner; and the scaling and rotating combined touch system does not need to distinguish whether the user operation is a scaling gesture or rotating gesture, and scaling and rotating can be synchronously carried out, thus the speed of touch operation is increased and the user operation experience is enhanced.

Description

technical field [0001] The invention relates to multi-point touch technology, in particular to a combined touch method, device and system for zooming and rotating. Background technique [0002] Multi-point touch screen, using two or more points of different posture media to touch the surface of the screen, can perfectly realize various multi-touch applications such as image zooming and rotation. At the same time, it has all the functions and advantages of the traditional single-point infrared touch screen. Different from the traditional single-point touch screen, the biggest feature of the multi-point touch screen is that two hands, multiple fingers, or even multiple people can operate the content of the screen at the same time, which is more convenient and humanized. Multi-touch technology is also called multi-touch technology. Multi-touch (also known as multi-touch, multi-sensing, multi-sensing, English translated as Multi-touch) is an input technology for computer users...

AI Technical Summary

Problems solved by technology

However, if you want to rotate during zooming or zoom during rotation, it is impossible to achieve

[0004] However, there are currently many 3D images or image processing software interfaces. The design of the control process is too complicated, and the combination of zoom and rotation gestures must be used for operation. Even many operation methods rely on the rapid switching of zoom and rotation. for the best control

Due to the sensing speed on the hardware and the switching speed recognized by the background processing software may not be able to keep up with the user's operation speed, so that the zoom and rotation switching cannot be completed smoothly, affecting the user experience

Images