Information point clustering method based on geographic information system

A technology of geographic information system and clustering method is applied in the field of information point clustering based on geographic information system to achieve the effect of realizing cluster display and avoiding secondary development.

Inactive Publication Date: 2014-10-08
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0003] The current management system based on geographic information system has the same problem as other software systems: the demand will change with the change of management requirements, and the change of demand will bring about constant changes in development. Therefore, The present invention focuses on solving the problem of how to avoid or reduce the work of system development while realizing the expansion of the business field

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  • Information point clustering method based on geographic information system
  • Information point clustering method based on geographic information system

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Embodiment Construction

[0025] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0026] Such as figure 1 As shown, according to a preferred embodiment of the present invention, a method for clustering information points based on a geographic information system includes the following steps:

[0027] Step 1. Determine the data range participating in the clustering according to the geographic location, scale and display size of the display area;

[0028] Step 2. Define the size of the clustering area and accordingly divide the display area into grids and serialize storage;

[0029] Step 3. According to the data range determined in the aforementioned step 1, load coordinate information points meeting the range requirements and form a sequence of information points;

[0030] Step 4. According to the clustering area of ​​the aforementioned step 2, one information point is sequentia...

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Abstract

The invention provides an information point clustering method based on a geographic information system. The information point clustering method includes the following steps that according to the geographic position, the proportional scale and the display size of a display area, the range of data participating in clustering is determined; the sizes of clustering areas are defined, and grid division and serialized storage are carried out on the display area based on the definition; according to the determined range of the data, coordinate information points meeting the range requirement are loaded, and an information point sequence is formed; according to the clustering areas, one information point is sequentially taken out from the information point sequence, and whether the information point is located in a certain clustering area is judged; if yes, one is added to the number counted by a counter of the current clustering area, and the information point is concealed; otherwise, a next information point is taken out, and the processing step is executed; the above steps are executed repeatedly, and all the clustering areas stored in a serialized mode are processed until all the clustering areas with grid division are processed; a clustering result is displayed on a display screen according to clustering objects and the geographic position, the proportional scale and the display size of the display area.

Description

technical field [0001] The invention relates to the technical field of data information clustering processing, in particular to an information point clustering method based on a geographic information system. Background technique [0002] Power transmission and transformation project construction management is mainly divided into line engineering and substation project. Due to the actual situation of power transmission and transformation project construction, it has a close relationship with geographic information. display and management. [0003] The current management system based on geographic information system has the same problem as other software systems: the demand will change with the change of management requirements, and the change of demand will bring about constant changes in development. Therefore, The problem addressed by the present invention is how to avoid or reduce the work of system development while realizing the expansion of the business field. Conte...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/287G06F16/29
Inventor 曾光谢洪平秦健丁志锋柏彬
Owner STATE GRID CORP OF CHINA
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