/************************************************************
?*??文檔作者：dxj
?*??創(chuàng)建時間：2010.3.7
?*??文檔說明：
?*??????本文件是點緩沖區(qū)邊界生成算法的C#實現(xiàn)。
?*?
?************************************************************/

using?System;
using?System.Collections.Generic;
using?System.Text;

using?DXJ.Teresa.GIS.Geoobject;

namespace?DXJ.Teresa.GIS.Buffer
{
????///?

????///?點緩沖區(qū)邊界生成算法
????///?

????public?class?PointBuffer
????{
????????#region?Public?Members
????????///?

????????///?用于近似表示點緩沖區(qū)邊界的內(nèi)接正多邊形的邊數(shù)N
????????///?

????????public?static?int?N?=?12;
????????#endregion

????????#region?Public?Static?Methods
????????///?

????????///?根據(jù)一個給定點的坐標，生成基于這個點的點緩沖區(qū)邊界點坐標串（逆時針）
????????///?

????????///?一個給定點的坐標
????????///?緩沖區(qū)的半徑
????????///?點緩沖區(qū)邊界點坐標串（逆時針）
????????public?static?string?GetBufferEdgeCoords（Coordinate?center?double?radius）
????????{
????????????double?alpha?=?0.0;//Math.PI?/?6;
????????????double?gamma?=?（2?*?Math.PI）?/?N;

????????????StringBuilder?strCoords?=?new?StringBuilder（）;
????????????double?x?=?0.0?y?=?0.0;
????????????for?（double?phi?=?0;?phi?????????????{
????????????????x?=?center.X?+?radius?*?Math.Cos（alpha?+?phi）;
????????????????y?=?center.Y?+?radius?*?Math.Sin（alpha?+?phi）;
????????????????if?（strCoords.Length?>?0）?strCoords.Append（“;“）;
????????????????strCoords.Append（x.ToString（）+““+y.ToString（））;
????????????}
????????????return?strCoords.ToString（）;
????????}
????????#endregion
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????3365??2010-03-06?11:52??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Buffer.sln

????..A..H.?????25600??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Buffer.suo

?????文件??????20480??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\bin\Debug\DXJ.Teresa.GIS.dll

?????文件??????22016??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\bin\Debug\DXJ.Teresa.GIS.pdb

?????文件???????1886??2010-03-07?20:30??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Buffer\PointBuffer.cs

?????文件???????6781??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Buffer\PolylineBuffer.cs

?????文件???????2319??2010-03-07?20:31??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Geoobject\Coordinate.cs

?????文件???????2127??2010-03-06?23:29??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\GIS.csproj

?????文件??????20480??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj\Debug\DXJ.Teresa.GIS.dll

?????文件??????22016??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj\Debug\DXJ.Teresa.GIS.pdb

?????文件??????16384??2010-03-06?13:22??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj\Debug\Refactor\DXJ.Teresa.GIS.dll

?????文件????????297??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj\GIS.csproj.FileListAbsolute.txt

?????文件???????1325??2010-03-06?10:07??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Properties\AssemblyInfo.cs

?????文件???????3034??2010-03-07?20:28??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Utility\MathTool.cs

?????文件??????20480??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Web\Bin\DXJ.Teresa.GIS.dll

?????文件??????22016??2010-03-07?20:33??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Web\Bin\DXJ.Teresa.GIS.pdb

?????文件????????432??2008-07-31?10:14??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Web\Default.aspx

?????文件???????1015??2010-03-07?20:06??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Web\Default.aspx.cs

?????文件???????1557??2010-03-06?11:56??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Web\web.config

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj\Debug\Refactor

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj\Debug\TempPE

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\bin\Debug

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj\Debug

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\bin

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Buffer

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Geoobject

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\obj

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Properties

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\GIS\Utility

?????目錄??????????0??2011-12-05?10:16??GIS?點、線緩沖區(qū)生成算法的C#實現(xiàn)\Web\App_Data

............此處省略7個文件信息