/// <summary>
/// 将几何对象从投影转换到84
/// </summary>
/// <returns></returns>
public static bool ConvertGeoPrjToEarth(this Geometry SourceGeo, PrjCoordSysType coordSysType)
{
CoordSysTransParameter cstp = new CoordSysTransParameter();
return(CoordSysTranslator.Convert(SourceGeo
, new PrjCoordSys(coordSysType)
, new PrjCoordSys(PrjCoordSysType.EarthLongitudeLatitude)
, new CoordSysTransParameter()
, CoordSysTransMethod.GeocentricTranslation));
}
/// <summary>
/// 转换主函数
/// Main function of transformation
/// </summary>
/// <param name="type">对应不同的投影类型 Projection type</param>
/// <returns>转换后投影的描述信息 The description information of projection after transformed</returns>
public String TransformPrj(int type)
{
try
{
m_srcMapControl.Map.Layers.Clear();
this.CopyDataset(m_bufPrjDataName);
PrjCoordSys gaussPrjSys = this.GetTargetPrjCoordSys(type);
Boolean result = CoordSysTranslator.Convert(m_processDataset, gaussPrjSys, new CoordSysTransParameter(), CoordSysTransMethod.GeocentricTranslation);
m_srcMapControl.Map.Layers.Add(m_processDataset, true);
m_srcMapControl.Map.Center = m_srcMapControl.Map.Bounds.Center;
m_srcMapControl.Map.Scale = m_srcMapControl.Map.Scale;
m_srcMapControl.Map.Refresh();
return(this.GetPrjStr(m_processDataset));
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
}
return(null);
}