Three-dimensional model image generating method and apparatus

A three-dimensional model and graphics technology, applied in the field of data processing, can solve the problems of massive three-dimensional spatial data hindering the application, unable to solve the bottleneck of reading data speed, data management and scene rendering difficulties, etc. Rendering requirements, effect of reducing polygon count

Active Publication Date: 2009-02-11
BEIJING LINGTU SOFTWARE TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with ordinary 3D applications, the data scale of 3D architectural environment is larger, the data types are more diverse, and the graphic data of the scene is more complex, which brings more difficulties to data management and scene description. Massive 3D spatial data has become the main factor hindering the applicatio

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  • Three-dimensional model image generating method and apparatus
  • Three-dimensional model image generating method and apparatus
  • Three-dimensional model image generating method and apparatus

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Embodiment Construction

[0058] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] refer to figure 1 , showing a flow chart of a method for generating 3D model graphics in the present invention, including:

[0060] Step 101. Obtain original fine 3D model data.

[0061] The 3D model data includes polygonal mesh vertex data representing 3D space objects. There are many implementation methods in the prior art for using 3D model data to represent 3D space objects, which will not be introduced in detail in the present invention. The three-dimensional model data is vertex grid data and other topological data that accurately represent three-dimensional space objects.

[0062] Step 102, compressing the 3D model data.

[0063] In order to reduce the amount of data required for transmission and rendering, it is ne...

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Abstract

The invention provides a pattern generation method for a three-dimensional model, which comprises the following steps: original precise three-dimensional model data is obtained, and the three-dimensional model data comprises polygon mesh vertex data which indicates a three-dimensional object; the three-dimensional model data is compressed, and redundant data of the three-dimensional model is reduced; a user request is received, the compressed three-dimensional model data is downloaded, and a three-dimensional model pattern is generated through rendering. Through the pattern generation method, the model complexity is reduced, the number of the polygons which need to be processed in an image system is reduced, the data size which needs to be transmitted is reduced, more particularly, the data size which is needed for the pattern generation in a rendering manner is reduced, the rendering speed is increased, and the real-time rendering request of the user can be satisfied. A pattern generation device for the three-dimensional model is also provided.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a method and device for generating three-dimensional model graphics. Background technique [0002] Geographic Information System (GIS) is a computer system for collecting, storing, managing, processing, retrieving, analyzing and expressing geographic spatial data. It is a general technology for analyzing and processing massive geographic data and a system for processing geographic information. . Geographical information refers to information directly or indirectly related to the spatial position on the earth, also known as spatial information. [0003] With the advancement of science and technology and the improvement of data processing capabilities, the geographical scope of GIS systems is gradually expanding, from the city level to the national scope, and even to the global scope. As the geographic scope expands, the data involved also increases. The management and application...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T15/00
Inventor 孙庆文孙维志孙茳刘路
Owner BEIJING LINGTU SOFTWARE TECH CO LTD
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