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Visualization method and system for Web end three-dimensional model

A technology of 3D models and models, applied in still image data browsing/visualization, network data browsing optimization, still image data retrieval, etc., can solve problems such as large amount of expressed data and unsatisfactory digital map clients, and achieve easy browsing, Applicable effect

Pending Publication Date: 2020-05-08
武汉珞珈灵智科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, traditional information data visualization is changing from text to pictures to video to real scenes, so that two-dimensional graphics can be transformed into three-dimensional and even multi-dimensional. The map client gradually fails to meet the needs of the Internet age

Method used

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  • Visualization method and system for Web end three-dimensional model
  • Visualization method and system for Web end three-dimensional model
  • Visualization method and system for Web end three-dimensional model

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Embodiment 1

[0074] Embodiment 1: The present invention mainly proposes a Cesium-based 3D model visualization method and system based on the theories and technologies of WebGL, spatiotemporal big data, and model matching. The present invention displays different types of data on the Web-side three-dimensional model visualization platform through the analysis and conversion of multi-model data (including point cloud data), and then uses different interactive functions to calculate and analyze related data, and at the same time It also independently proposed the Draco compression algorithm to compress 3DTiles data, which greatly improved the efficiency of data transmission.

[0075] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to e...

Embodiment 2

[0098] Embodiment 2: the method provided by the invention can realize flow process with computer software technology, and overall technology comprises the following steps:

[0099] Step 1 In order to determine the operability of the Cesium platform, the ION cloud platform was tested and analyzed. After the user uploads and manages the required data (including 3D models, point clouds, BIM, etc.) through the MyAssets interface, the background of the system automatically performs tiling. CesiumION provides services based on layers and terrains. In addition, there are other functions such as overlay and fusion, such as figure 2 .

[0100] Step 2 is to realize the conversion between various data formats, and analyze various data formats such as CZML, gITF, and 3DTiles. The data formats mainly involved in the embodiment of the present invention are CityGml (.gml), trajectory landmark (.kml), point cloud (.las), model (.dae), and the kml data needs to be converted into CZML and dae...

Embodiment 3

[0119] Embodiment 3: Based on the present invention, the Cesium-based three-dimensional model visualization can be realized conveniently and efficiently. like figure 2 As shown, the present invention proposes a new platform system for multi-model data processing oriented to the visualization of three-dimensional models on the Web. The platform system is divided into three key modules: analysis and conversion of multiple data formats, and data compression based on Draco algorithm. , 3D visualization platform construction of multi-model data, etc.

[0120] The present invention mainly comprises the following steps:

[0121] Step 1, first, test and analyze the ION cloud platform; then, analyze CZML, gITF, 3DTiles and other data formats; finally, convert kml, gml, las and other data types into CZML, gITF and 3DTiles are used to call and display on the Cesium-based multi-model 3D visualization platform on the web.

[0122] Step 2. First, design relevant interactive interfaces a...

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Abstract

The invention provides a visualization method and system for a Web end three-dimensional model, and the method comprises the steps: obtaining multi-source data, and uniting the format of the multi-source data into a preset standard format; enabling a Cerium platform to match a corresponding data source according to the multi-source data, and calling a data model corresponding to a data source according to the type of the multi-source data; establishing an interactive interface of a server according to the data model; splicing and merging data models by adopting a graph-model integration mode; and loading a spliced data model into an interactive interface of the server to generate a three-dimensional data model, and visually displaying the three-dimensional data model. Three-dimensionaldisplay of multiple data sources such as point clouds, 3D models and multiple models is achieved, and the invention has the advantages of being light in weight, free of installation, easy to browse, high in applicability and the like and has great significance in promoting smart city construction.

Description

technical field [0001] The present invention relates to the introduction of Cesium-based three-dimensional model visualization research technology, including analysis and conversion methods of multiple data formats, construction method of three-dimensional dynamic display platform for multi-model data, and Draco compression algorithm for 3D Tiles data transmission, etc., belonging to laser point cloud Processing and the intersection of new types of 3D model visualization. Background technique [0002] With the rapid development of communication technology and the Internet, the concept of "digital earth" has been deeply rooted in the hearts of the people. Users hope to be able to access the smart city platform anytime and anywhere, and obtain the required geographic information data comprehensively, accurately and in real time, especially high-precision 3D data. geographical information. Therefore, in recent years, three-dimensional browsing platforms based on B / S architectu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/957G06F16/54
CPCG06F16/957G06F16/54
Inventor 唐涛戴磊胡宗田
Owner 武汉珞珈灵智科技有限公司
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