Volume 34 Issue 7
Jul.  2009
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NIU Fangqu, GAN Guohui, CHENG Changxiu, QI Zheng. Key Techniques in Multi-scale Display of Vector Data[J]. Geomatics and Information Science of Wuhan University, 2009, 34(7): 869-872.
Citation: NIU Fangqu, GAN Guohui, CHENG Changxiu, QI Zheng. Key Techniques in Multi-scale Display of Vector Data[J]. Geomatics and Information Science of Wuhan University, 2009, 34(7): 869-872.
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Key Techniques in Multi-scale Display of Vector Data

  • 1 Institute of Geographic Sciences and Natural Resources Research,CAS,11A Datun Road,Beijing 100101,China;2 College of Science,China Agricultural University,17 East Qinghua Road,Beijing 100083,China

Funds: 国家自然科学基金资助项目(40401047)；国家“十一五”科技支撑计划资助项目(2006BAD10A05)
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  • Received Date: May 15, 2009
  • Revised Date: May 15, 2009
  • Published Date: July 04, 2009
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  • In multi-scale display of vector data,it is very troublesome to decide the criterion of small objects,the sequence of scale values,and so on.In order to solve these key problems mentioned above,we discussed some key techniques and gave corresponding solutions.Based on the techniques discussed here,a demonstration was built.The experimental system used an extended GAP-tree index to realize the multi-scale display of vector data.The discussion about these key techniques problems will contribute to the research on the multi-scale display in GIS.
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