三次参数样条曲线在等高线矢量化中的应用  

Application of Cubic Parametric Spline Curve in Contour Vectorizaiton

作　　者：余代俊[1] 耿留勇[1] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059

出　　处：《测绘与空间地理信息》2007年第6期153-155,共3页Geomatics & Spatial Information Technology

摘　　要：主要阐述了如何应用参数样条曲线在AutoCAD中快速准确地矢量化等高线。通过对三次参数样条曲线不同边界条件所绘线形的分析,最终选定了用夹持端样条曲线来矢量化等高线,并在AutoCAD平台上和VC++ 6.0开发环境下,用Object ARX开发工具包开发完成该矢量化程序。实践证明,该法切实可行,提高了工作效率。The paper mainly expatiates how to get vector contours quickly and accurately by parametric spline curve in AutoCAD. After analyzing the shape of cubic parametric spline curve with different boundary conditions,it is decided to get vector contours by spline curve with clamping boundary condition, and develop veetorization program on the platform of AutoCAD by ObjectARX toolbox and VC ＋ ＋6.0. Practice has proved that the method is practicable,and enhances work efficiency.

关 键 词：矢量化 等高线 三次参数样条曲线 

分 类 号：P231.5[天文地球—摄影测量与遥感]