Fast Display Algorithm of Large Map File Based on Memory Mapping File Technique

Dai Hong Jiang

doi:10.4028/www.scientific.net/AMM.668-669.1064

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 668-669Fast Display Algorithm of Large Map File Based on...

Fast Display Algorithm of Large Map File Based on Memory Mapping File Technique

Abstract:

This paper presents a Fast display Algorithm of large Map File based on memory mapping file technique, designing for reducing the number of pointer moves and the data in memory scheduling ,The algorithm uses a memory-mapped file access operation of a large-scale map file to resolve the problem of traditional file processing methods, which can not read more than 2G map image file; combined image pyramid technology to apply different resolutions depending on the display requirements map image, in order to achieve the purpose of roaming quickly. The experiment and analysis results show that the algorithm is able to achieve the best resolution real-time roaming of large-scale digital map.

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Periodical:

Applied Mechanics and Materials (Volumes 668-669)

Pages:

1064-1067

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.668-669.1064

Citation:

Cite this paper

Online since:

October 2014

Authors:

Dai Hong Jiang*

Keywords:

Data Partition, GIS, Image Pyramid, Map Roaming, Memory Mapping File Technique

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* - Corresponding Author

References

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