A scaling method for 3D pen-style interactive interface based on rotation angle and distance

Abstract

The invention provides a rotary angle and distance-based three-dimensional pen interaction interface zooming method, which is applied to the technical field of three-dimensional pen man-machine interaction. The method comprises the steps of obtaining a distance between an intelligent pen and a host by adopting an ultrasonic three-dimensional high-precision wireless locating technology; obtaining a rotary angle of the intelligent pen by adopting acceleration and gyroscope signals; and when the rotary angle of the intelligent pen belongs to a controllable angle range, calculating the length of a virtual ruler according to the rotary angle of the intelligent pen and the distance, calculating a zooming ratio coefficient of a user interface based on the virtual ruler and a length factor, obtaining a corresponding zooming ratio, and adjusting the user interface to a corresponding display ratio. When the intelligent pen executes a drawing or interactive task, the task does not need to be interrupted, and the zooming ratio of the user interface can be continuously selected by adjusting the rotary angle of the intelligent pen or the spatial position of the user, so that the adjustment speed is increased, the power consumption can be reduced and the visual burden of the user can be reduced.

Description

technical field [0001] The invention relates to a scaling method of a three-dimensional pen-type interactive interface, in particular to a method for selecting the scaling ratio of a three-dimensional pen-type interactive interface based on the rotation angle and distance of a smart pen, which can realize the continuous scaling selection of the user interface size at any distance , which can be applied to the technical field of three-dimensional pen-type human-computer interaction. Background technique [0002] With the development of human-computer interaction technology, various efficient and natural human-computer interaction methods centered on people have emerged, and three-dimensional large-space pen-based interaction has emerged as the times require. The three-dimensional pen interaction technology combines the pen with the three-dimensional information in the human-computer dialogue, simulates the human habit of using paper and pen for thousands of years, and makes f...

AI Technical Summary

Problems solved by technology

[0006] Chinese patent "A Method and Device for Page Zooming in a Browser" (Application No. 201410124020.X) discloses a device for page zooming in a browser and a corresponding method for page zooming in a browser, so that users can Intuitively see the specific zoom ratio during the zooming process of the page, which solves the problem that the user cannot intuitively understand the zooming level during the zooming process

However, the corresponding relationship between the display ratio and the zoom ratio described in these methods is preset, not a ratio that is updated in real time, and the user's zoom operation on the page is cumbersome, such as pressing the zoom combination key, clicking on the zoom option, dragging and sliding Bars, etc., not suitable for three-dimensional large space pen interaction

[0007] The Chinese patent "A Method and Device for Realizing the Scaling of the Display Interface of a Mobile Terminal" (Application No. 201510141019.2) discloses a method and device for realizing the zooming of the display interface of a mobile terminal. scaling, but this method is only suitable for small handheld devices, not for large stationary terminals

[0008] Chinese patent "A method and device for adjusting the display interface on the terminal" (application number 201210562959.5) discloses a method and device for adjusting the display interface on the terminal, which can adjust the display according to the distance between the terminal and the terminal user interface, but this method presets the mapping relationship between the average distance and the interface display ratio in advance. As long as the preset action is executed, the interface display ratio will be automatically adjusted at any specific distance, and it is fixed. It is not suitable for electronic Multi-users such as whiteboards share terminals, and cannot realize free choice, and cannot meet the needs of diverse scenarios in the process of 3D human-computer interaction

The Chinese patent "Display Device, Display Control Method, and Display Control Program" (Application No. 201010104322.2) discloses a mobile terminal with a display screen and a display control method that can zoom in or out according to the relative position of the operator's face relative to the display device. Reduce the display information on the display screen, but this method is only applicable to the case of a single user at a short distance, and the interface display ratio will be automatically adjusted to a fixed size at any specific distance, and the relative distance between the user and the display screen is constantly changing Under normal circumstances, the adjustment of the display information is very frequent, causing the display screen to vibrate continuously, which is harmful to the user's eyesight and consumes a lot of power

However, this method is aimed at personal terminal devices (tablets or mobile phones). For different user groups, the preset initial distance and the step value of the display ratio are different, and it cannot Scale the display interface

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