A method of avoiding crack for compressing polygon data by topological data conversion

HU Yun; FANG Lu-ming

doi:10.11833/j.issn.2095-0756.2011.04.012

Volume 28 Issue 4

Aug. 2011

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HU Yun, FANG Lu-ming. A method of avoiding crack for compressing polygon data by topological data conversion[J]. Journal of Zhejiang A&F University, 2011, 28(4): 597-600. doi: 10.11833/j.issn.2095-0756.2011.04.012

Citation:

HU Yun, FANG Lu-ming. A method of avoiding crack for compressing polygon data by topological data conversion[J]. Journal of Zhejiang A&F University, 2011, 28(4): 597-600. doi: 10.11833/j.issn.2095-0756.2011.04.012

A method of avoiding crack for compressing polygon data by topological data conversion

doi: 10.11833/j.issn.2095-0756.2011.04.012

1.
School of Information Engineering，Zhejiang A & F University，Lin’an 311300，Zhejiang，China

More Information

Corresponding author: HU Yun
Publish Date: 2011-08-20

Abstract

On the basis of cadastral survey data for forestry tenure，and with the methods of topological data conversion，common boundary compression by Douglas-Peucher algorithm，negative buffer analysis and spatial join，the paper proposes how to eliminate the crack issue of polygon plots compression. The research results have the following implications：（1） the joint method is effective to eliminate the crack of polygon data compression，so as to achieve the high-fidelity compression of polygon data；（2） the topology relation and the attribute data of polygon data are completely maintained. This joint method is of value to process cartographic generalization for forestry tenure and to compress a variety of formats for vector files. ［Ch，7 fig. 12 ref.］
- forest management,
- polygon compression,
- crack,
- negative buffer analysis,
- spatial topology

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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A method of avoiding crack for compressing polygon data by topological data conversion

1. School of Information Engineering，Zhejiang A & F University，Lin’an 311300，Zhejiang，China

Corresponding author: HU Yun

Publish Date: 2011-08-20

Key words:

Abstract: On the basis of cadastral survey data for forestry tenure，and with the methods of topological data conversion，common boundary compression by Douglas-Peucher algorithm，negative buffer analysis and spatial join，the paper proposes how to eliminate the crack issue of polygon plots compression. The research results have the following implications：（1） the joint method is effective to eliminate the crack of polygon data compression，so as to achieve the high-fidelity compression of polygon data；（2） the topology relation and the attribute data of polygon data are completely maintained. This joint method is of value to process cartographic generalization for forestry tenure and to compress a variety of formats for vector files. ［Ch，7 fig. 12 ref.］

A method of avoiding crack for compressing polygon data by topological data conversion

doi: 10.11833/j.issn.2095-0756.2011.04.012

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

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