An algorithm for automatic cartographic sounding selection |
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| Authors: | Sui Haigang Cheng Penggen Zhang Anming Gong Jianya |
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| Institution: | (1) National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, WTUSM, 129 Luoyu Road, 430079 Wuhan, China |
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| Abstract: | Soundings on nautical charts provide information about the shape ol ocean bottom between chart depth curves. A single chart may have thousands of soundings posted on it. This paper describes a new algorithm for selecting soundings automatically. At first, the problem encountered in automatic cartographic sounding selection is presented. Then the authors give the principle of the new algorithm,and the implementation is illuminated in detail. At last the experiments prove the rationality and efficiency of the new algorithm. |
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| Keywords: | sounding automatic sounding selection depth curves influence circle TIN |
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