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Method and device for processing geographic information vector data

A technology of vector data and geographic information, applied in the field of geographic information vector data processing, can solve problems such as affecting efficiency, time-consuming, unfavorable system query and maintenance, etc., to achieve the effect of reducing the number of reading and writing and improving efficiency

Active Publication Date: 2014-03-05
RUN TECH CO LTD BEIJING
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Problems solved by technology

When a relational database is used to store geographic information vector data, if a vector layer contains a large number of geographic objects, the table formed when using a relational database for storage is relatively large, which is very time-consuming and affects efficiency when storing and querying vector data , which is not conducive to system query and maintenance

Method used

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  • Method and device for processing geographic information vector data
  • Method and device for processing geographic information vector data
  • Method and device for processing geographic information vector data

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Embodiment Construction

[0063]The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

[0064] exist figure 1 A first embodiment of the invention is shown in .

[0065] figure 1 It is a flow chart of the geographical information vector data processing method according to the first embodiment of the present invention, such as figure 1 As shown, the method can be used to store massive geographic information vector data, and the geographic information vector data processing method includes:

[0066] Step 110, converting vector data in an external format into vector layer data, the vector layer data includes layer ...

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Abstract

The invention discloses a method and device for processing geographic information vector data. The method includes the steps of converting the vector data in an external format into vector image layer data, wherein the vector image layer data comprise image layer basic information, image layer metadata information and geographic target data, and the geographic target data comprise geographic target attribute information, geographic target index information and geographic target vector data; using the vector image layer data as a storage unit, and computing an outer covering frame range of the storage unit; storing the image layer basic information, the image layer metadata information, the geographic target attribute information, the geographic target index information and the outer covering frame range of the storage unit into a relation database; storing the geographic target data in the storage unit into a distribution key value database. According to the method and device for processing the geographic information vector data, the geographic information vector data storage efficiency and the geographic information vector data inquiring efficiency can be effectively improved.

Description

technical field [0001] The present invention relates to the field of computers, in particular to the field of computer data management, in particular to a method and device for processing geographic information vector data. Background technique [0002] Geographic information vector data is generally organized by vector layer, and usually vector data of the same type and collected under the same scale are organized by a layer. Vector data generally expresses the spatial position of geographic entities as accurately as possible by recording coordinates. Geographic objects can be simply divided into point, line, and area objects according to their geometric shapes. A geographic object includes information such as attribute data and geometric data. [0003] The geographic information vector data processing methods in the prior art mainly use relational databases for storage. The general method is to directly use the geometric field types provided by the relational database to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 庄贤荣
Owner RUN TECH CO LTD BEIJING
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