A Method of Flying and Roaming in a 3D Scene

Abstract

The invention discloses a method for flying and roaming in a three-dimensional scene. When a user browses a three-dimensional scene, the starting point of view and the ending point of view of the camera flight are first calculated according to the instructions input by the user, and then calculated according to the starting point of view and the ending point of view. The flight path of the camera; finally, the camera is controlled to fly and roam in the three-dimensional scene according to the flight path; wherein, the starting viewpoint includes the position and attitude of the camera at the starting point, and the ending viewpoint includes the position and attitude of the camera at the ending point. Since the viewpoint of the camera includes the position and attitude of the camera, by calculating the starting viewpoint and the ending viewpoint of the camera, accurate positioning can be realized when flying and roaming in the 3D scene. The flight path calculated by the camera's starting point of view and ending point of view takes into account the position and attitude of the camera during flight, so it can provide a variety of flying attitudes, so that users can get a better flying experience when browsing the 3D scene.

Description

Technical field [0001] The present invention relates to the field of computer graphics, and more particularly to a method of flying roaming in three-dimensional scenes. Background technique [0002] In recent years, with the continuous development of computer graphics and the continuous advancement of the three-dimensional space technology research, geographic information data is presented, browsed, analyzed, and applied to a main direction in the development of geographic information industry. Especially in the big context of national construction of smart cities, establish a three-dimensional scenario, superimpose 3D data in a scene, solve the problem of the city in the scene, and become a big premise for further establishing smart cities. [0003] After the spatial geographic information data is presented in the three-dimensional scene, a roaming mechanism needs to be established to achieve seamless browsing of the three-dimensional scene. Roaming is a way of browsing a three-...

AI Technical Summary

Problems solved by technology

However, the flight roaming method in the prior art has problems such as inaccurate positioning points and poor flight experience.

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