EllipseAreaLibrary类库：
（1）GetFeaturePolygonArea(IFeatureLayer pFeatureLayer, ref List<double> Result)
获得给定图层中所有图斑面积
（2）GetPolygonArea(IPolygon pIPolygon)
获得指定多边形面积
（3）SetFeaturePolygonArea(IFeatureLayer pFeatureLayer, string fieldname)
设置图层中所有图斑面积到指定字段
椭球面上任意梯形面积计算含代码
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2012-04-26
18:52:15
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AT21_EllipseAreaApplication.rar （35个子文件） 
AT21_EllipseAreaApplication 
AT21_EllipseAreaApplication.sln 2KB
代码说明.txt 319B AT21_EllipseAreaApplication.suo 48KB RefrenceDLL AT21GIS.FunLibrary.dll 64KB log4net.dll 264KB GaussCalculateLibrary bin GaussPrjBase.cs 12KB SphWGS84.cs 1KB obj CoordinateFactory.cs 1KB SphXian80.cs 1KB GaussCalculateLibrary.csproj 3KB SphBeijing54.cs 1KB Properties AssemblyInfo.cs 1KB ICoordinate.cs 2KB AT21_EllipseAreaApplication bin Debug 
AT21_EllipseAreaApplication.exe 28KB AT21_EllipseAreaApplication.exe.config 2KB GaussCalculateLibrary.dll 24KB EllipseAreaLibrary.dll 20KB AT21GIS.FunLibrary.dll 64KB log4net.dll 264KB testForm.cs 8KB AT21_EllipseAreaApplication.csproj 5KB Program.cs 565B testForm.Designer.cs 7KB obj testForm.resx 9KB ATPolygon.cs 279B App.config 2KB Properties Resources.resx 5KB Settings.settings 249B AssemblyInfo.cs 1KB Settings.Designer.cs 1KB Resources.Designer.cs 3KB EllipseAreaLibrary bin EllipseAreaLibrary.csproj 4KB obj EllipseAreaLibrary.csproj.FileList.txt 286B ATEllipseArea.cs 8KB Properties AssemblyInfo.cs 1KB
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