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Research on the Linkage Updating Method of Multi-scale Road Data

Author: WangPengBo
Tutor: WuFang
School: PLA Information Engineering University
Course: Cartography and Geographic Information Systems
Keywords: Linkage update Geometric matching Incremental information Topology Map generalization Collision detection
CLC: P208
Type: Master's thesis
Year: 2009
Downloads: 117
Quote: 2
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Abstract


After decades of efforts , China has initially built a scale map series , spatial databases and mapping work of the center of gravity is updated to the data and services from the initial data production shift . Road data update is an important part of the entire map data update work its workload throughout the update work accounted for the main component . How to make full use of existing data and results , reduce duplication update work to improve the efficiency of the production and updating , is the starting point of this study . Thesis downsizing to update small scale data must link with a large - scale road data to design a multi- scale road data linkage update update mode , the main work includes: 1 . Analysis of the concept of \connotation of a multi- scale road data linkage updated implementation strategy and technology processes . Studied the transformation and unification of the coordinate system and projection , unified data format and encoding , established on the basis of multi- scale road data linkage test platform for system updates . Proposed a road matching method based on a simple buffer technology , and applies it to the road data incremental information extraction ; design the incremental information Rougher method for the rule-based library . Study road network topology relationship building technology , build a sub-regional local topology topological approach ; road automatically select technology , proposed a progressive path selection methods ; Research Road automation Jane and improved Dauglas-Peucker algorithm for road simplification ; road collision detection information and relational processing technology .

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > General issues > Mapping database and information system
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