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VIVE virtual earth roaming browse method based on OsgEarth

An earth and digital earth technology, applied in the field of geographic information system, can solve the problems of artificial scene modeling and small scene scope, and achieve the effect of strong sense of reality, realistic effect and convenient operation and use.

Active Publication Date: 2018-11-06
THE CHINESE PEOPLES LIBERATION ARMY 92859 TROOPS
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Although the current VR equipment brings people a better virtual space experience, there are still some shortcomings, which can be summarized as follows: (1) Most of the scenes are artificially modeled, not real data from the real world; (2) The scope of the scene is small

Method used

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  • VIVE virtual earth roaming browse method based on OsgEarth
  • VIVE virtual earth roaming browse method based on OsgEarth
  • VIVE virtual earth roaming browse method based on OsgEarth

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] A kind of roaming browsing method of VIVE virtual globe based on OsgEarth, such as figure 1 shown, including the following steps:

[0038] Step 1. Based on the OsgEarth digital earth platform, construct a 3D geographic information scene. The specific method is as follows:

[0039] First of all, the data required to construct a 3D geographic scene are acquired through surveying and mapping methods, mainly including: (1) DOM image data reflecting landforms. Mosaic, uniform light and color processing, etc., to meet certain precision index requirements; (2) DEM elevation data reflecting terrain features, which are obtained through aerospace stereo photography and other means; (3) oblique photography data reflecting architectural details, these The data is acquired by means of aerial oblique photography and edited manually.

[0040] Then, the above-ment...

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Abstract

The present invention relates to a VIVE virtual earth roaming browse method based on an OsgEarth. The method comprises the steps of: Based on an OsgEarth digital earth platform, constructing a three-dimensional geographic information scene; based on the OpenVR, constructing a plugin suitable for an OsgEarth digital earth platform; employing the plugin suitable for the OsgEarth digital earth platform, performing arrangement and connection of an HTC VIVE hardware device; and employing a camera controller with a first-person perspective and employing the HTC VIVE to perform roam control on the OsgEarth digital earth. Through combination of the OpenVR technology and the OsgEarth technology, the link of the HTC VIVE hardware device and the OsgEarth software platform is constructed, and the OsgEarth digital earth platform VR roam first-person perspective camera controller is constructed through the coordinate transformation relation among the real space, the virtual space, the projection space and the device space so as to achieve the global VR roam browse control function, and the VIVE virtual earth roaming browse method based on an OsgEarth is vivid in effect, high in sense of realityand convenient to operate and use, and can be widely applied to the geographic information application field.

Description

technical field [0001] The invention belongs to the technical field of geographic information systems, in particular to an OsgEarth-based VIVE virtual earth roaming browsing method. Background technique [0002] The three-dimensional geographic information system represented by digital earth has obvious advantages compared with the traditional two-dimensional geographic information system in terms of the analyzability of geographic information and the intuitiveness of geographic information expression. At present, there are many successful digital earth products at home and abroad, such as GoogleEarth, ArcGlobe, Virtual Earth, EV-Globe, etc., but these commercial platforms are more or less deficient in terms of openness, portability, and customization. OsgEarth is an open source digital earth platform developed based on the OpenSceneGraph 3D graphics rendering engine. It has good scalability, openness and portability, and has attracted extensive and in-depth research in the ...

Claims

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Application Information

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IPC IPC(8): G06T19/00G06F17/30G06F8/20
CPCG06F8/22G06T19/006
Inventor 赵健刘玉红闸旋郭忠磊李海滨申家双
Owner THE CHINESE PEOPLES LIBERATION ARMY 92859 TROOPS
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