Volume 38 Issue 4
Apr.  2013
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CAO Zhenzhou, LI Manchun, CHENG Liang, CHEN Zhenjie. Progressive Transmission of Vector Curve Data over InternetCAO ZhenzhouLI Manchun[J]. Geomatics and Information Science of Wuhan University, 2013, 38(4): 475-479.
Citation: CAO Zhenzhou, LI Manchun, CHENG Liang, CHEN Zhenjie. Progressive Transmission of Vector Curve Data over InternetCAO ZhenzhouLI Manchun[J]. Geomatics and Information Science of Wuhan University, 2013, 38(4): 475-479.
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Progressive Transmission of Vector Curve Data over InternetCAO ZhenzhouLI Manchun

  • 1College of Geographic and Oceanographic Science, Nanjing University, 22 Hankou Road, Nanjing 210093, China)(2College of Geomatics Engineering, Nanjing University of Technology, 200 Zhongshan Road, Nanjing 210009,China

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  • Received Date: March 14, 2013
  • Revised Date: April 04, 2013
  • Published Date: April 04, 2013
    Graphical Abstract
    • Abstract
  • We propose a method for multi-scale representation of curve which keeps topological relationship unchanged and elaborates the process of progressive transmission of curve data over the Internet based on this method. Firstly, the importance degree of nodes and the information about public constrain points and monotone chains are stored in a monotonous linear BLG tree structure. Then the multi-scale curve is generated in real time based on this structure and the topological relationship is maintained by an optimized monotone chains intersection algorithm. Finally, the method was used in the experiment of progressive transmission of curve data over the Internet and verified its effectiveness.
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    • References (15)
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