Touch control equipment and display control method and device of 3D rotary plate

Abstract

The invention provides touch control equipment and a display control method and device of a 3D rotary plate. The method includes the steps of detecting a touch point position of a touch operation, converting a displacement vector of the touch point of the touch operation in a screen coordinate system into a displacement vector in a work coordinate system, determining the turning direction and the rotation speed of the 3D rotary plate according to a direction parameter and the displacement vector in the world coordinate system, wherein the direction parameter is determined according to the relationship of the touch operation and the focus point of the 3D rotary plate, and controlling rotation display of the 3D rotary plate on a screen according to the determined rotation direction and the rotation speed of the 3D rotary plate. Based on the method, a user can achieve rotation control of the 3D rotary plate at any position, and good man-machine interaction experience is achieved.

Description

technical field [0001] The present invention relates to the field of graphic user interface, in particular to a display control method and device for a touch device and a 3D turntable. Background technique [0002] Human-Machine Interaction (HMI, Human-Machine Interaction) refers to the process of information interaction between humans and computers using a certain language to complete certain tasks in a certain interactive way. Graphical User Interface or Graphical User Interface (GUI, Graphical User Interface), as a medium of human-computer interaction, has been widely used and is one of the major achievements of today's computer development. The graphical user interface or graphical user interface greatly facilitates the use of non-professional users. People no longer need to memorize a large number of commands by rote. Instead, they can be easily operated through windows, menus, and buttons. [0003] Now many graphical user interfaces or graphical user interfaces have r...

AI Technical Summary

Problems solved by technology

For example, for figure 2 The display of a rotatable turntable shown in the touch-sensitive 2D display interface is also three-dimensional in terms of visual effect, but when it is necessary to dynamically control the turntable (such as turning the turntable around the axis shown by the dotted line), existing It is a display control based on 2D technology. It can only rotate the front of the turntable shown in the shaded part. The direction of rotation of the turntable is determined according to the direction of the user's operation. For example, sliding operation from left to right is determined as counterclockwise, and from right to left The sliding operation is determined to be clockwise, and it cannot simulate the real turntable to rotate it at any position, for example, in figure 2 In the position of point P shown in , if the sliding operation is from left to right, it actually controls the clockwise rotation of the turntable, while using the existing technology will show that the turntable turns counterclockwise

Therefore, when performing rotation control and display on the turntable displayed in 3D, the existing technology cannot realize the rotation control at any position, and the user cannot obtain the real experience of turning the turntable.

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