Method for storing vector data and indexing space
A technology of spatial indexing and vector data, which is used in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of reduced client-side visualization effect and increased network data transmission volume, so as to reduce network data transmission volume and improve effect of effect
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[0024] The present invention will be described in further detail below according to the embodiments and the accompanying drawings.
[0025] In order to be able to adapt to the needs of multiple applications for space vector data management, the present invention uses a relational database system (RDBMS) to store vector data, and space vector data is organized according to the form of point, line->point, polygon->point, text , figure 1 It is the logical model of the space vector data database designed by the present invention.
[0026] In this logical model, spatial vector data is organized in dataset tables in the form of thematic layers, and each thematic layer consists of a basic table (thematic basic table in the figure) and multiple tables for storing thematic objects according to the data type. The data table composition.
[0027] The theme basic table records the space vector data type of the theme and the information of the additional attribute fields of the theme, as...
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Abstract
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