| DTM不规则三角形格网的规则化压缩存贮 |
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| 引用本文： | 陈晓勇.DTM不规则三角形格网的规则化压缩存贮[J].测绘学报,1992,21(3):193-204. |
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| 作者姓名： | 陈晓勇 |
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| 作者单位： | 武汉测绘科技大学 |
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| 摘 要： |
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| 关 键 词： | DTM 三角形格网 规则化 压缩存贮 |
A COMPACT DATA STRUCTURE FOR REGULAR STORAGEOF TRIANGULATED IRREGULAR NETWORKS OF DTM |
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| Chen Xiaoyong.A COMPACT DATA STRUCTURE FOR REGULAR STORAGEOF TRIANGULATED IRREGULAR NETWORKS OF DTM[J].Acta Geodaetica et Cartographica Sinica,1992,21(3):193-204. |
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| Authors: | Chen Xiaoyong |
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| Institution: | Wuhan Technical University of Surveying and Mapping |
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| Abstract: | :
By using mathematical morphology and setting the redundant point numbers, a method for irregular network to regular network(I-R) transformation and a compact data structure for regular storage of Triangulated Irregular Networks (TINs) of DTM is developed. This new data structure can not only reduce about 'a half of storage space, but also be retrieved very fast by compairing with all present storage methods of TIN. Moreover, this data structure can include any kind of geomorphological characteristic information. Finally, the methods for editing and managing large TIN have been briefly discussed in this paper. Experiments for suggested methods give us a good result. |
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| Keywords: | : TIN Regularization Data structure Compact saving Mathematicalmorphology |
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