Map vector data slicing method for overlapping power grid data

A vector data and map slicing technology, which is applied in database indexing, data processing applications, structured data retrieval, etc., can solve problems such as poor user experience and long time consumption, and achieve the goal of improving storage efficiency, improving efficiency, and saving processes Effect

Pending Publication Date: 2020-11-10
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the rapid development of GIS applications and Web GIS, the data volume of vector data continues to increase. The traditional vector data transmission method takes a long time under the limited network bandwidth, and the user experience is extremely poor.

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  • Map vector data slicing method for overlapping power grid data

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Embodiment Construction

[0017] In order to better understand the present invention, the method and system of the present invention will be further described below with reference to the description of the embodiments in conjunction with the accompanying drawings.

[0018] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In the embodiments, well-known methods, procedures, components have not been described in detail so as not to unnecessarily obscure the embodiments.

[0019] see figure 1 As shown, the present invention provides a method for slicing map vector data of superimposed grid data, comprising the following steps:

[0020] In the demand receiving step, the client sends a grid map service request, wherein grid data is superimposed on the grid map;

[0021] Jud...

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Abstract

The invention discloses a map vector data slicing method for superposing power grid data, solves the problems of slicing time of map tiles and storage space of the map tiles, automatically stores themap slice data, and improves slice storage efficiency. By adopting different strategies according to different hierarchies, the tiles are efficiently established, the time period for publishing the map visualization service is greatly shortened, and the user response time is minimized.

Description

technical field [0001] The invention belongs to the technical field of electric power geographic information, and in particular relates to a map vector data slicing method for superimposing grid data. Background technique [0002] With the development of Internet technology, Internet Geographic Information System has become the hot spot of Geographic Information System (GIS). One of the main development directions of WWW GIS is multivariate data access, which requires spatial data to be open in a distributed network, and any data in a distributed network can be accessed through an exchange format. At present, GIS at home and abroad basically adopts two kinds of map generation technologies, namely raster graphics technology and vector graphics technology. [0003] Among them, the disadvantage of raster graphics technology is that it is impossible to separate text data and geometric representations, the amount of network transmission data is large, and the interactivity is po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/22G06F16/29G06Q50/06
CPCG06Q50/06G06F16/2291G06F16/29
Inventor 王宪金欢王轶马潇王寒
Owner CHINA ELECTRIC POWER RES INST
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