public static ISpatialReference CreateProjectedCoordinate(esriSRProjCS4Type pcsType)
{
ISpatialReferenceFactory2 pSpatialReferenceFactory = new SpatialReferenceEnvironmentClass();
ISpatialReference pSpatialReference = pSpatialReferenceFactory.CreateProjectedCoordinateSystem((int)pcsType);
return(pSpatialReference);
}
public static ISpatialReference CreateGeographicCoordinate(esriSRProjCS4Type gcsType)
{
ISpatialReferenceFactory pSpatialReferenceFactory = new SpatialReferenceEnvironmentClass();
ISpatialReference pSpatialReference = pSpatialReferenceFactory.CreateGeographicCoordinateSystem((int)gcsType);
return(pSpatialReference);
}
/// <summary>
/// 投影坐标系信息
/// <para>包括：坐标系别名、坐标系名称、坐标系枚举、投影带号等</para>
/// </summary>
/// <param name="eType"></param>
public ProjectionInfo(esriSRProjCS4Type eType)
{
Wkid = (int)eType;
AliasName = Name = eType.ToString().Replace("esriSRProjCS4Type.esriSRProjCS_", "").Replace('_', ' ');
var splitNameAraay = Name.Split(new[] { "Zone " }, StringSplitOptions.RemoveEmptyEntries);
ProjectZone = splitNameAraay.Length == 2 ? Convert.ToInt32(splitNameAraay[1]) : 0;
}
public bool ResolveJson(string jsonPath)
{
if (File.Exists(jsonPath))
{
string jsonStr = File.ReadAllText(jsonPath);
JavaScriptSerializer js = new JavaScriptSerializer();
js.MaxJsonLength = Int32.MaxValue;
FeatureObjClass obj = js.Deserialize <FeatureObjClass>(jsonStr);
//解析空间参考
Dictionary <string, object> dict = (Dictionary <string, object>)obj.spatialReference;
string wkt = dict["wkt"].ToString();
string[] mySRArray = wkt.Split(new string[] { "PROJCS[", "," }, StringSplitOptions.None);
string mySr = "esriSRProjCS_" + mySRArray[1].Replace("\"", "").Replace("Xian_1980", "Xian1980");
esriSRProjCS4Type srEnum = (esriSRProjCS4Type)Enum.Parse(typeof(esriSRProjCS4Type), mySr);
//解析要素
//FeatureClass Name
setNameAndGeotype(obj.displayFieldName, obj.geometryType, (int)srEnum, obj.fields, obj.features);
}
return(true);
}
/// <summary>
/// 创建西安1980高斯克吕格3度分带含带号”的指定带号投影坐标系
/// </summary>
/// <param name="belt">带号（范围在[25,45]之间）</param>
/// <returns></returns>
public static ISpatialReference CreateGauss3_Xian1980(int belt)
{
esriSRProjCS4Type jcsType = GetPcsType_Gauss3_Xian1980(belt);
return(new SpatialReferenceEnvironmentClass().CreateProjectedCoordinateSystem((int)jcsType));
}
/// <summary>
/// 根据指定投影类型创建投影坐标系
/// </summary>
/// <param name="pcsType">投影类型枚举(esriSRProjCS4Type)</param>
/// <returns></returns>
public static ISpatialReference CreateSpatialRef(esriSRProjCS4Type pcsType)
{
return(CreateSpatialRef((int)pcsType, ESrType.Projected));
}
/// <summary>
/// 创建投影坐标系
/// </summary>
/// <param name="pcsType"></param>
/// <returns></returns>
static public ISpatialReference CreateProjectedCoordinateSystem(esriSRProjCS4Type pcsType)
{
return(CreateProjectedCoordinateSystem((int)pcsType));
}
