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A fast map representation method and system based on multi-layer storage of point vector data

A multi-layer storage, point-vector technology, applied in electrical digital data processing, structured data retrieval, geographic information databases, etc., can solve problems such as inefficiency, topological analysis and computing efficiency bottlenecks, etc., to achieve beautiful and reduce data transmission. volume, and the effect of improving performance

Active Publication Date: 2016-09-14
SHANGHAI TAIYU INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a fast map representation method and system based on multi-layer storage of point vector data, which can simultaneously solve the problem of network transmission volume, server-side or client-side topology analysis and calculation in the map representation of point vector data Efficiency bottlenecks and inefficiencies, beautiful maps show these three problems

Method used

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  • A fast map representation method and system based on multi-layer storage of point vector data
  • A fast map representation method and system based on multi-layer storage of point vector data
  • A fast map representation method and system based on multi-layer storage of point vector data

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Embodiment 1

[0044] Such as figure 1 As shown, a fast map representation method based on point vector data multi-layer storage, including the following steps,

[0045] Step 1, collect the point vector data, and store the point vector data in the data table on the data server side. Store the point vector data in a spatial data table VP_Base on the data server side; the field of the data table VP_Base has some position information (x_pos, y_pos) and attribute fields of each business requirement, and the data in this table is already available through investigation or other means The data. Assume that the attribute fields of the data table VP_Base stored on the server side according to the business in an application are as follows:

[0046]

[0047] In this table, the business attribute fields include "PeopleNumber" (population), "GDP" (per capita domestic income) and a series of other attribute fields, with a total of 41636 records. According to the application requirements, the vector...

Embodiment 2

[0079] A large enterprise has business all over the country. The company headquarters needs a thematic map application, so that the company's executives can easily grasp the operation status of stores across the country, and ordinary consumers can also easily understand the distribution and location of branches in various places through the thematic map. consumption. The company has collected information on branches distributed across the country. According to business needs, we sort out the spatial data table VM_Base (2012 data) corresponding to the vector data of this point. The table data is as follows:

[0080]

[0081] In this table, there are many attribute fields, and the irrelevant attribute fields are replaced by "other attributes" for this map; the data table has 8132 records. In this application, the two attributes of "annual net profit" and "average price" need to be applied to thematic maps respectively. Therefore, all attribute fields that need to be stored hi...

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Abstract

The invention relates to a rapid map representing method based on point vector data multilayer storage. The method comprises the following steps that 1, point vector data are collected; 2, the data are stored in a layered data sheet of a data server side in a layered way; 3, a map data configuration table needed to be displayed by terminal equipment is built; 4, the terminal equipment sends request information of displaying point vector map data to the data server side; 5, the data server side analyzes the request information of the terminal equipment, selects a map data source which is matched with the point vector map data requested by the terminal equipment and terminal equipment configuration data from the map data configuration table, and sends the map data source to the terminal equipment; 6, the terminal equipment realizes the map representation of the point vector data on a map. By using the rapid map representing method based on the point vector data multilayer storage, the problems in the three aspects of network transmission quantity, server side or client side topology analysis computational efficiency bottleneck and inefficient and attractive map representation of the point vector data map representation can be solved at the same time.

Description

technical field [0001] The invention relates to a map representation method and system of vector data in a geographic information system, in particular to a fast map representation method and system based on multi-layer storage of point vector data. Background technique [0002] Vector data is a common representation method of spatial data in geographic information systems. It is a data organization method based on the vector description method to express and process the characteristics of spatial features. It is mainly composed of point vector, line vector and area vector data. Point vectors are used to describe various marker points on the map, such as monitoring points, residential points, etc. In actual GIS projects, the main technical difficulties in the application of point vector data lie in the large amount of data, uneven distribution, and complex topological spatial analysis relationships. Point vector data in GIS generally includes point position coordinates, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 闫富松
Owner SHANGHAI TAIYU INFORMATION TECH