Method for commercial scale vector map data gradual transmission and dynamic reconstruction

A vector map data, large-scale technology, applied in the field of spatial information
CN101246597AInactive Publication Date: 2008-08-20BEIJING NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING NORMAL UNIVERSITY
Publication Date
2008-08-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a progressive transmission of large scale vector map data and reconstructed method, including following steps: (A)multi-scale vector map data real-time dynamic generation and reconstruction algorithm:including following steps (1) delecting the peak, (2)quickly generating vector map data under the appointed scale; (3) building incremental data; (4) adjusting the peak; (5) inserting in the peak; (6) combining the splitting-up method; (7) rebuilding the vector map data; (B) system structure implement: including the following steps: (1) client, processing interactive with the application server, acquiring space data, real-time dynamic generating incremental data and processing data rebuild; (2) an application server, searching relative data in engine by the multi-scale space data and processing deserializing, real-time building multi-scale space vector data model. The invention provides a multi-scale data model fit for big data vector map progressive transmission, realizing the real-time progressive transmission of the large scale vector map data and the quickly visual function.
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Description

1. Technical field

[0001] The invention provides a method for progressive transmission and dynamic reconstruction of large-scale vector map data, which belongs to the technical field of spatial information. 2. Background technology

[0002] The rapid development of spatial information technology has made it possible to quickly acquire high-resolution and high-precision spatial data, but it has caused a series of problems to be solved, such as: real-time and rapid transmission and display of large-scale vector map data, etc. The current map synthesis algorithm is difficult to meet the real-time and fast transmission and display of large-scale vector map data, especially in the case of concurrent access by multiple users, the existing real-time map synthesis algorithm will put great pressure on the server. There is an urgent need to design a multi-scale spatial data model to save map synthesis results. When customers access multi-scale data, they can directly retrieve the corr...

Claims

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