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Method and system for processing spatial data

A technology of spatial data and processing methods, which is applied in the field of Internet applications, can solve the problems of large data transmission and high transmission costs between the server and the client, and achieve the effect of reducing the transmission data volume and transmission costs

Active Publication Date: 2017-07-04
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the spatial data sent by the server to the client is the original coordinates of the feature points, there will be a large amount of high-level data with the same coordinates, so that there will be a large amount of redundant data in the transmitted spatial data, and the coordinates of the feature points with a greater distance from the origin, The larger the amount of redundant data generated, the larger the amount of data transmitted between the server and the client, and the higher the transmission cost

Method used

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  • Method and system for processing spatial data
  • Method and system for processing spatial data
  • Method and system for processing spatial data

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Embodiment Construction

[0051] The basic idea of ​​the present invention is: receive the spatial data request carrying the coordinates of the tile map sent by the client; obtain the center point of the tile map according to the coordinates of the tile map and the preset size of the tile map coordinates; according to the coordinates of the center point and the coordinates of the element points of the tile map, obtain the coded value of the element point; send the coded value to the client.

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] The invention provides a method for processing spatial data, figure 1 It is a schematic flow diagram of the preferred embodiment 1 of the present invention to realize the processing method of spatial data, such as figure 1 As shown, the method includes the following steps:

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Abstract

The invention provides a processing method for spatial data. The processing method comprises the steps that a spatial data request, with coordinates of a tile map, sent by a client terminal is received; center coordinates of the tile map are obtained according to the coordinates of the tile map and the size of a preset tile map; according to the center coordinates and coordinates of an element point of the tile map, the coded value of the element point is obtained; the coded value is sent to the client terminal. The invention further provides a processing system for the spatial data. According to the technical scheme, the transmission data size between a server and the client terminal can be reduced, and transmission cost can be lowered.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of Internet applications, in particular to a method and system for processing spatial data. [0003] 【Background technique】 [0004] At present, in the process of generating an electronic map, the client needs to request spatial data from the server, and then generate an electronic map based on the spatial data obtained from the server, and display it to the user; The data is sent to the client; the spatial data sent by the server is the coordinates of the feature points based on the universal coordinate system, and the universal coordinate system refers to the coordinate system obtained after converting the spherical coordinates of the earth into plane coordinates, so the server sends to the client Spatial data is the original coordinates of feature points. [0005] However, in the spatial data sent by the server to the client, some spatial data, or even all spatial data belong to the feature points in the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 王果赵红超
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD