Self-adaptive vector data incremental updating method

A vector data and incremental update technology, applied in the computer field, can solve the problems of inability to guarantee data integrity and consistency, insufficient discussion of data consistency maintenance and spatial conflict handling, etc., to maintain topology consistency and reduce detection range, the effect of improving accuracy

Inactive Publication Date: 2016-04-20
张新长
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Problems solved by technology

[0005] The current research focuses on the perspective of change detection and spatial-temporal process modeling, and discusses the update method, process and storage method of change information, and the discussion on da

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  • Self-adaptive vector data incremental updating method
  • Self-adaptive vector data incremental updating method
  • Self-adaptive vector data incremental updating method

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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0052] An adaptive vector data incremental update method in the present invention mainly performs detection and correction processing on the coordinate system, data structure and topological relationship of the data to be updated based on the storage standard, and generates new data based on the data to be updated. Standard data; determine the type of new standard data, if it is judged that the new standard data type is completion measurement data, then update the d...

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Abstract

The invention discloses a self-adaptive vector data incremental updating method. The method comprises the following steps of detecting and correcting a coordinate system, a data structure and a topological relation for to-be-updated data based on a database-entering standard, determining a new standard data type based on newly-produced standard data of the to-be-updated data, updating the data based on a factor updating method if the new standard data type is determined to finish construction survey data, updating the data in a mapsheet updating method if the new standard data type is determined to be large area census data, and detecting and processing spatial conflict for the updated data. According to the embodiment, functions of vector data change detection and increment update, self-adaptive data edge matching and spatial conflict detection and processing can be achieved; and integrity and consistency can be guaranteed after the data is updated.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to an adaptive vector data incremental update method. Background technique [0002] Urban development is changing with each passing day, and the construction of spatial data needs to keep up with the pace of urban spatial development. After the basic geographic data, place name and address data, remote sensing image data and other land and resource achievement data involved in land resources and social services are collected, they need to be Timely and dynamic updates to ensure the current situation and accuracy of spatial data. Vector spatial data update is the main means to maintain the current situation of spatial database, which mainly updates data through change information detection, update event modeling and spatial conflict detection. However, the current research focuses on the update method, process and storage method of change information from the perspective of change...

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Application Information

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IPC IPC(8): G06F17/30G06N3/02
CPCG06F16/951G06F16/235G06F16/2365G06N3/02
Inventor 张新长
Owner 张新长
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