C# ArcEngine获取坐标系、投影类型、计量单位、带号、几度分带、精度

//获取参数
 IGeoDataset pDataset = TarFealyr.FeatureClass as IGeoDataset;
 ISpatialReference pSpatialReference = pDataset.SpatialReference;
 IGeographicCoordinateSystem pGeoCoordSys = (pSpatialReference as IProjectedCoordinateSystem).GeographicCoordinateSystem; //地理坐标
 IProjection pProjection = (pSpatialReference as IProjectedCoordinateSystem).Projection;    //投影坐标系
 string sProjection = pProjection.Name;    //投影坐标系
 double dCentral = (pSpatialReference as IProjectedCoordinateSystem).get_CentralMeridian(true);    //中央经线
 double dFalseEast = (pSpatialReference as IProjectedCoordinateSystem).FalseEasting;
 IDatum pDatum = pGeoCoordSys.Datum;
 ISpheroid pSpheroid = pDatum.Spheroid;
 string sCoordinateSystem = pSpheroid.Name;    //地理坐标
 dFalseEast = Math.Round(dFalseEast);
 int iDegree = int.Parse(((dFalseEast.ToString()).Substring(0, 3)));

 string sDegree = string.Empty;
 string sDegreeNo = string.Empty;
 double dPrecision = (pSpatialReference as ISpatialReferenceResolution).get_XYResolution(true);    //数据精度
 ILinearUnit pLinearUnit = (pSpatialReference as IProjectedCoordinateSystem).CoordinateUnit;    //计量单位
 string sUnit = pLinearUnit.Name;
 string sConverParam = string.Empty;
 string sVertion = string.Empty;
 string sCompany = string.Empty;
 string sParamConf = m_ZDDataSource.ParamConfigFile;


 if (iDegree > 250)
 {
     sDegree = "3";
 }
 else
 {
     sDegree = "6";
 }

 if (sDegree == "3")
 {
     sDegreeNo = (Math.Floor(dCentral / 3)).ToString();
 }
 else
 {
     sDegreeNo = (Math.Floor((dCentral + 3) / 6)).ToString();
 }


 //地理坐标系转中文
 if (sCoordinateSystem.ToUpper() == "XIAN_1980")
 {
     sCoordinateSystem = "西安80";
 }
 else if (sCoordinateSystem.ToUpper() == "BEIJING_1954")
 {
     sCoordinateSystem = "北京54";
 }


 //投影坐标系转中文
 if (sProjection.ToUpper() == "GAUSS_KRUGER")
 {
     sProjection = "高斯克吕格";
 }
 else if (sProjection.ToUpper() == "UTM")
 {
     sProjection = "通用横轴墨卡托";
 }
 else if (sProjection.ToUpper() == "LAMBERT_CONFORMAL_CONIC")
 {
     sProjection = "等角割圆锥";//兰勃特等角投影、等角正轴割圆锥投影
 }

         //单位转中文
 if (sUnit.ToUpper() == "KILOMETER")
 {
     sUnit = "千米";
 }
 else if (sUnit.ToUpper() == "METER")
 {
     sUnit = "米";
 }
 else if (sUnit.ToUpper() == "CENTIMETER")
 {
     sUnit = "厘米";
 }
 else if (sUnit.ToUpper() == "MILLIMETER")
 {
     sUnit = "毫米";
 }
 else if (sUnit.ToUpper() == "INCH")
 {
     sUnit = "英寸";
 }
 else if (sUnit.ToUpper() == "MILE")
 {
     sUnit = "英里";
 }