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Three-dimensional simulation electronic chart of navigation channel

A technology of 3D simulation and electronic diagram, which is applied in surveying and navigation, image data processing, 3D image processing, etc. It can solve problems such as insufficient spatial cognition and constraints on the progress of 3D representation technology of spatial information, 3DGIS engineering application practice, etc.

Inactive Publication Date: 2008-04-02
长江航道局 +1
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AI Technical Summary

Problems solved by technology

Existing 3D GIS research focuses on 3D visualization technology, and the research on the more basic 3D GIS spatial cognition problem is not enough, which also restricts the progress of spatial information 3D representation technology and 3D GIS engineering application practice

Method used

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  • Three-dimensional simulation electronic chart of navigation channel
  • Three-dimensional simulation electronic chart of navigation channel

Examples

Experimental program
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Embodiment Construction

[0009] As shown in Figure 2, the generation of the 3D simulation electronic map of the waterway is mainly formed by the real 3D data provided by the spatial database through the interface graphics processing software independently developed by the front end. Using DEM terrain data to form FLT terrain geometry data through CREATOR tool, using DOM image data to form RGB terrain texture through PHOTOSHOP tool; using 3D model design data to form 3D model geometry data through 3DSMAX tool, using aerial photography model data to form RGB terrain through PHOTOSHOP tool texture. Then use FLT terrain geometry data and RGB terrain texture to form FLT terrain data through CREATOR tool; use 3D model geometry data and RGB terrain texture to form FLT terrain data through CREATOR tool; the two formed FLT terrain data form 3D simulation electronics of waterway in VEGA picture.

[0010] VEGA is a software system for developing real-time visual and auditory simulation, virtual reality and gene...

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Abstract

The invention discloses a fairway three-dimensional simulated electronic map which is formed in a following way: DEM topographic data, DOM image data, 3D model design data and aviation shooting model data are used for forming FLT topographic geometric data, RGB topographic texture, 3D model geometric data and RGB topographic texture through compilation of CREATOR tools, PHOTOSHOP tools and 3DMAX tools; then the FLT topographic geometric data and the RGB topographic texture are used for forming FLT topographic data through the CREATOR tools; the 3D model geometric data and the RGB topographic texture are also used for forming FLT topographic data through the CREATOR tools; the two types of FLT topographic geometric data form the fairway three-dimensional simulated electronic map in VEGA. The model of the fairway three-dimensional simulated electronic map expands the visualization concept and applies the visualization technology throughout the whole GIS process. The visualization not only reproduces operation results but also provides more powerful support for data processing, space inquiry and analysis and various three-dimensional models and also provides a three-dimensional, vivid, dynamic and interactive running environment for GIS.

Description

technical field [0001] The invention belongs to electronic three-dimensional simulation technology, in particular to a three-dimensional simulation electronic map of a waterway. Background technique [0002] With the continuous development of computer three-dimensional (3D) display technology, the requirement for visualization of map symbols is becoming increasingly urgent. The contradiction between the abstraction and image of map symbols returns to three-dimensional visualization in the process of opposite and spiral development, which leads to the three-dimensional visualization of spatial information becoming one of the important features of GIS development. The 3D visualization technology makes the traditional 2D and static map representation develop towards the 3D and dynamic scene representation. With the support of the spatial database, virtual reality (VR) technology can be used to build a virtual environment. After entering this environment, people can use Compute...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/50G06T15/00G01C11/00G06T17/05
Inventor 吴立杨瑞庆朱庆李昕
Owner 长江航道局
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