A method for selecting objects in virtual three-dimensional space based on pen-type interactive system

An interactive system and three-dimensional space technology, applied in the field of human-computer interaction technology and virtual reality, can solve the problems of untargeted selection and provide effective methods, and achieve the effect of improving user experience, improving efficiency, and convenient interaction

Active Publication Date: 2019-07-26
JILIN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This invention can provide the three-dimensional space coordinates and attitude information of the smart pen (electronic pen), but it does not provide an effective method for the selection of the target in the large three-dimensional virtual space

Method used

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  • A method for selecting objects in virtual three-dimensional space based on pen-type interactive system
  • A method for selecting objects in virtual three-dimensional space based on pen-type interactive system
  • A method for selecting objects in virtual three-dimensional space based on pen-type interactive system

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Embodiment Construction

[0032] Include the following steps:

[0033] (1) Take the lower left corner of the host as the coordinate origin, take the horizontal straight line passing through the origin as the X axis, take the straight line passing through the origin and vertically upward as the Y axis, and take the straight line passing through the origin and perpendicular to the XOY plane as the Z axis, and establish 3D coordinate system;

[0034] (2) When the user operates the electronic pen, the electronic pen transmits its own spatial position information and attitude information to the host in real time. The so-called spatial position information of the electronic pen refers to the absolute coordinate of the position A of the electronic pen tip in the actual space (x 0 ,y 0 ,z 0 ), the attitude information refers to the pitch angle α and the heading angle β of the electronic pen. According to the information provided by the electronic pen, the system generates a direction vector with the coordina...

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Abstract

The invention belongs to a selection method of a target in a three-dimensional virtual space, and particularly provides a selection method of a target in a three-dimensional virtual space based on a pen-based interactive system. Based on a three-dimensional ultrasonic pen-based positioning system, a coordinate of an electronic pen and posture information of the electronic pen are obtained, and the selection of the target is achieved according to the coordinate of the electronic pen and the posture information of the electronic pen. The size of a large screen, the user selection convenience, the distance that a user needs to move and other problems are taken into consideration, and the precise and quick selection of the target is further achieved according to the posture of the electronic pen, a key and a defined algorithm. The user can precisely select any target in the three-dimensional virtual space at any position, the space limitation is broken through, and the precise and quick selection of the virtual target in the three-dimensional large space is achieved in the man-machine interaction process.

Description

technical field [0001] The invention relates to a method for selecting a target in a virtual three-dimensional space, in particular to a method for accurately selecting a target in a virtual three-dimensional space based on a pen-type interactive system, which can realize the user's selection of any target in a virtual space at any position in a large space Accurate selection can be applied in fields such as human-computer interaction technology and virtual reality. Background technique [0002] The research on human-computer interaction is getting more and more in-depth, and the research is also developing towards a human-centered, natural and efficient aspect, and electronic pen-style interaction has also emerged as the times require. The traditional graphical user interface is based on the desktop metaphor, adopts the WIMP interaction paradigm, and uses the mouse and keyboard as interactive input devices to realize human-computer interaction. Electronic pen interaction s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/0346
CPCG06F3/0346
Inventor 陈建杨鹏孙晓颖孙铭会燕学智林琳温泉康凯于嘉鑫
Owner JILIN UNIV
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