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Refined and efficient dynamic tile map service publishing method, medium and electronic equipment

A tiled map and service release technology, applied in the field of map services, can solve the problem that map services are difficult to balance loading efficiency and dynamic visualization quality, and achieve the effect of ensuring visualization quality and loading efficiency

Active Publication Date: 2022-05-31
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem in the prior art that map services are difficult to balance loading efficiency and dynamic visualization quality, and to provide a refined and efficient dynamic tile map service publishing method, medium and electronic equipment

Method used

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  • Refined and efficient dynamic tile map service publishing method, medium and electronic equipment
  • Refined and efficient dynamic tile map service publishing method, medium and electronic equipment
  • Refined and efficient dynamic tile map service publishing method, medium and electronic equipment

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Embodiment Construction

[0038] Referring to FIG. 1, in a preferred embodiment of the present invention, a refined and efficient dynamic tile is provided.

[0043] There are many existing methods in the prior art for generating static grid tiles based on an initial vector data source.

[0050] gridSizeX=WidthL / 2

[0051] gridSizeY=HeightB / 2

[0060] x

[0061] y

[0063] S113, use the tile number formed by the level, row number and column number as a key to include the color information and the image

[0065] As a preferred implementation form of the embodiment of the present invention, for each initial level tile, its rendering static

[0066] a) traverse all the drawing information with the same tile number;

[0067] b) according to the vector element type and the color and pixel coordinate information in the drawing information, draw tiles in turn;

[0068] c) Write the drawn tile as a picture file according to the tile number.

[0070] As a preferred implementation form of the embodiment of the present...

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Abstract

The invention discloses a refined and efficient dynamic tile map service publishing method, medium and electronic equipment, belonging to the field of map services. The present invention loads static grid tiles cached in files to ensure rendering efficiency when low-level tiles need to be displayed, and generates dynamic vector tiles in real time through vector element data in a relational database when high-level tiles need to be displayed, ensuring The fineness of visualization and the customizability of visualization schemes at high levels are guaranteed, and the rendering of all levels can achieve second-level response; at the same time, for the static grid tiles cached in the file, through the monitoring data update interface, each The updated content is sent to the distributed publish-subscribe message system, incremental data is obtained in real time through stream computing, and the updated data content is updated to the existing static grid tile files through distributed algorithms, so as to provide full-level dynamic Tile services are displayed in front of users with optimal performance and effects.

Description

Refined and efficient dynamic tile map service publishing method, medium and electronic device technical field The present invention belongs to the field of map services, in particular to a kind of refined and efficient dynamic tile map service publisher law, media and electronic equipment. Background technique [0002] The map tile technology solves the rendering efficiency and browser compatibility problems when the client requests a map. way to reduce the amount of data transmitted in real time and reduce the response time to improve the user experience. At the same time, with the sharding level With continuous improvement, the number of tiles increases exponentially, which requires data slicing of large-scale geographic data and publishing as tile maps service, and ensure its stability, correctness, and dynamic fine-grained loading of high-level tiles. Several open source GIS engines that are currently popular all have slicing algorithms for vector data, but mos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/22G06F16/23G06F16/27G06F16/28G06F16/29
CPCY02D10/00
Inventor 胡林舒张丰孙克染傅晨华陈宁华
Owner ZHEJIANG UNIV
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