摘要
介绍用VB.NET独立开发的等值线算法类库wContour.dll,包括离散数据网格化、基于网格数据的等值线追踪、平滑、裁剪及填充功能。该类库的算法经过随机生成数据的严格测试,能够灵活、有效地用于软件开发中等值线功能的实现。区域填充算法是基于拓扑关系的,能够生成多边形矢量图形。wContour.dll可以免费下载、使用。
Contour mas are an effective tool to show the spatial distribution of a variable,which is used widely in many fields including meteorology.A contour-related algorithm class library named ＂wContour.dll＂ was developed using VB.NET,which has such functions as interpolation,contour generation,smoothing,clipping,and color filling.The algorithms have been tested with random data,and can be used flexibly in software development to realize contour functions.The contour filling algorithm is based on topology relationship,so vector polygon shapes can be generated.The class library（wContour.dll） could be downloaded and used for free.
出处
《气象科技》
北大核心
2010年第4期478-483,I0011,共7页
Meteorological Science and Technology
基金
中国气象科学研究院基本科研业务费专项资金重点项目(2008Z004)资助
