public object Clone()
{
ProjectionCoordSystem prj = new ProjectionCoordSystem();
if (_name != null)
{
prj._name = _name.Clone() as NameMapItem;
}
if (_parameters != null && _parameters.Length > 0)
{
prj._parameters = CloneParameters();
}
if (_unit != null)
{
prj._unit = _unit.Clone() as AngularUnit;
}
return(prj);
}
/*
* PROJECTION["Mercator"],
* PARAMETER["False_Easting",0.0],
* PARAMETER["False_Northing",0.0],
* PARAMETER["Central_Meridian",0.0],
* PARAMETER["Standard_Parallel_1",0.0],
* UNIT["Meter",1.0]
*/
protected override IProjectionCoordSystem ParseProjectionCoordSystem(WktItem wktItem)
{
if (wktItem == null)//Is Graphics Coordinate System
{
return(null);
}
string name = wktItem.Value.Split(',')[0].Replace("\"", string.Empty);
NameMapItem prjName = GetPrjName(wktItem.GetWktItem("PROJECTION"));
if (prjName == null)
{
throw new Exception("投影坐标系统\"" + name + "\"没有在系统中预先配置。");
}
NameValuePair[] parameters = GetPrjParameters(wktItem.GetWktItems("PARAMETER"));
AngularUnit unit = new AngularUnit(wktItem.GetWktItem("UNIT"));
ProjectionCoordSystem prj = new ProjectionCoordSystem(prjName, parameters, unit);
prj.NameDes = name;
return(prj);
}