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A method and device for controlling the rotation of a 3D model

A 3D and model technology, applied in the direction of image data processing, instruments, etc., can solve the problems of lack of model coordinate conversion method, incapable of 3D model rotation operation, etc.

Inactive Publication Date: 2018-01-05
TVM BEIJING TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] When the 3D model displayed in two-dimensional coordinates is rotated, its coordinates in the three-dimensional space change. Due to the lack of coordinate conversion methods for the model in 3D model technology, it is impossible to achieve flexible control of the 3D model. model rotation

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  • A method and device for controlling the rotation of a 3D model
  • A method and device for controlling the rotation of a 3D model
  • A method and device for controlling the rotation of a 3D model

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0029] A method for controlling the rotation of a 3D model provided by the present invention, see figure 1 and figure 2 , including the following steps:

[0030] S101: Acquire 3D model data, and display the 3D model;

[0031] Acquire 3D model data, display the 3D model, and display the 3D model in a space coordinate system.

[0032] S102: Detecting that the user slides the 3D model along a certain direction, and obtaining plane coordinate values ​​generated by the sliding;

[0033] The 3D model is displayed on the display screen, and at this time, the rotation mode of the 3D model can be controlled through operations in the two-dimensional space on the display s...

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Abstract

The invention discloses a method and a device for controlling the rotation of a 3D model, which are used for converting plane two-dimensional coordinates into three-dimensional three-dimensional coordinates, so as to easily control the rotation operation of the 3D model. The method includes: acquiring 3D model data, displaying the 3D model; detecting that the user slides the 3D model along a certain direction, and obtaining plane coordinate values ​​generated by the sliding; converting the plane coordinate values ​​generated by the sliding It is the space coordinate value of the 3D model; according to the change of the space coordinate value, the rotation of the 3D model is controlled. By calculating the position and size of the model in the space coordinate system, the equation of the circle where the model is located is obtained. When other computer input devices such as a mouse or a computer stylus operate on the model, the desktop coordinate plane coordinates are processed into world coordinates, and the mouse operation Behavior, rotate the model, and realize the flexible control of the model rotation.

Description

technical field [0001] The invention relates to the technical field of image display, in particular to a method and device for controlling the rotation of a 3D model. Background technique [0002] With the continuous development of technology, more and more 3D technologies have begun to enter people's lives. 3D technology is a three-dimensional digital technology that displays the three dimensions (length, width and height) of objects on a plane through electronic devices such as computers, and presents images in 3D for users to appreciate. [0003] The 3D model can be constructed based on images, and the 3D model of the object can be automatically generated with the assistance of a computer by providing a set of sequential photos of objects from different angles. [0004] Therefore, the final 3D model is displayed on the screen by processing these sequence photos from different angles. [0005] When the 3D model displayed in two-dimensional coordinates is rotated, its coo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T19/20
Inventor 杨金伟
Owner TVM BEIJING TECH
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