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Method for forming and applying high speed Wcb electronic map based on space data base and SVG

An electronic map and application method technology, applied in the field of database structure, can solve the problems of lack of completeness of vector graphics definition, unfavorable data reuse and exchange, and inability to upgrade the standard level, etc., to achieve competitive advantages, low product prices, and high stability. sexual effect

Inactive Publication Date: 2007-04-11
福州开睿动力通信科技有限公司
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AI Technical Summary

Problems solved by technology

However, due to the lack of corresponding specifications for vector graphics, each manufacturer is self-contained, which is not conducive to data reuse and exchange. Moreover, due to financial and technical reasons, the definition of vector graphics of manufacturers lacks integrity, which can only meet their own needs and cannot be upgraded to Specification level

Method used

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  • Method for forming and applying high speed Wcb electronic map based on space data base and SVG
  • Method for forming and applying high speed Wcb electronic map based on space data base and SVG
  • Method for forming and applying high speed Wcb electronic map based on space data base and SVG

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Embodiment Construction

[0024] As shown in Fig. 1, it is the overall structural diagram of the present invention, and it is made up of server and client i.e. front desk control module; Wherein, server comprises data permanent layer and application logic layer, and each part is specifically:

[0025] 1. The data permanent layer includes SXW files and spatial database (Oracle Spatial), among which:

[0026] 1. The SXW file is mainly used to record the expression of spatial information and the relationship between each layer;

[0027] 2. The spatial database (0racle Spatial) is mainly used to permanently store spatial data and perform some major spatial operations;

[0028] 2. The application logic layer includes data cache, SXW parser, data updater, SVG assembler, SVG element factory and distributor, among which:

[0029] 1. Data cache: The data cache is used to cache the data requested by the customer. When the same resource is accessed again, the system can quickly return the result;

[0030] 2. SX...

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Abstract

The invention relates to a database structure that is constructed or arranged by the use of the internet map data, especially belonging to a generation and application method of high speed Web electric map based on the space database and SVG, which is composed of server and client end that is named foreground control module. The server contains the data permanent layer that includes SXW documents and Oracle Spatial, and the application logic layer that includes data storage, SXW analysis device, data updating device, SVG packaging device, SVG element plant, distribution device and client end. The effect of the invention is: the efficient and independent Oracle Spatial management and calculating spatial system. Because the space data performance and space dada calculation are separated, the terminal user greatly improves speed in space inquiry and map examination, so that it is beneficial in the user experience.

Description

technical field [0001] The invention relates to a database structure for constructing or arranging map data using an interconnected network, in particular to a method for generating and applying a high-speed Web electronic map based on a spatial database and SVG. Background technique [0002] At present, two types of map generation technologies are basically used in the field of Web GIS in China. According to the different carriers of map graphics, they are divided into raster graphics (Raster) technology and vector graphics (Vector) technology. The disadvantage of raster technology is that the network transmission of graphics has a large amount of data. At the same time, generating raster graphics requires a large amount of budget on the server, which puts a lot of computing pressure on the server. In addition, raster graphics cannot separate data and representation, which is not conducive to the future The use of data based on mobile terminals in the 3G era has split the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 林松福郑万疆何禧
Owner 福州开睿动力通信科技有限公司
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