Method and system for labeling direction in three-dimensional geographic information scene of computer

Abstract

The invention provides a method and a system for labeling a direction in a three-dimensional geographic information scene of a computer. The method comprises the steps of step 1, firstly determining askybox picture corresponding to a forward direction according to an azimuthal coordinate of a sphere; step 2, labeling the generated azimuth information into the corresponding skybox picture; and step 3, projecting the skybox picture labeled with the azimuth information into the sky of a current scene through a skybox so that a user can know a current azimuth through observation of the sky. The method and the system for labeling the direction in the three-dimensional geographic information scene of the computer have the beneficial effects that azimuth identification is carried out in the three-dimensional scene such that the direction is intuitive and is identified easily, and the sight of the user is not interfered; and through the azimuth identification, the user can express not only ahorizontal azimuth but also a pitching angle, thus the information is more accurate.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a method and system for marking directions in computer three-dimensional geographic information scenes. Background technique [0002] With the development of cities, especially the continuous development of large cities towards digitization, intelligence and wisdom, the scope of application of 3D geographic information scenes is no longer niche, and the contact population is no longer single, but oriented towards diversification. Among them, 3D scenes are widely used in resource management, environmental monitoring, urban planning, land management and transportation, water conservancy, forestry and other fields. [0003] In the current 3D scene, the directions are mostly marked with compass or compass graphics. Usually, the logo used in this type of labeling method is located at a corner of the scene picture. In order not to affect the visual effect of the scene, the ove...

AI Technical Summary

Problems solved by technology

Taking the initial position of traditional markers pointing to the true north as an example, when the user adjusts the 3D scene camera to change the viewing angle, the markers such as the compass or the compass will be offset by the corresponding angle to mark the true north position, but there are many directions in the current operating population It is difficult for users who do not have a strong sense or have not received professional geographic information education to quickly identify the current position in this way

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