public void TestBLtoXY()
{
{
double B = SurMath.DMStoRad(21.58470845);
double L = SurMath.DMStoRad(113.25314880);
double L0 = SurMath.DMStoRad(111);
//Ellipsoid ellipsoid = new Ellipsoid(6378245, 298.3);
Ellipsoid ellipsoid = Ellipsoid.CreateBeijing1954();
IProj proj = new GaussProj(ellipsoid);
var xy = proj.BLtoXY(B, L, L0, 0, 0);
Assert.AreEqual(2433586.692, xy.X, 0.001);
Assert.AreEqual(250547.403, xy.Y, 0.001);
}
//数据来自《大地测量学基础》2版P193
{
double B = SurMath.DMStoRad(17.33557339);
double L = SurMath.DMStoRad(119.15521159);
double L0 = SurMath.DMStoRad(117);
Ellipsoid ellipsoid = Ellipsoid.CreateBeijing1954();
IProj proj = new GaussProj(ellipsoid);
var xy = proj.BLtoXY(B, L, L0, 0, 0);
Assert.AreEqual(1944359.6070, xy.X, 0.003);
Assert.AreEqual(240455.4563, xy.Y, 0.001);
}
//数据来自《大地测量学基础》2版P193
{
double B = SurMath.DMStoRad(17.33557339);
double L = SurMath.DMStoRad(119.15521159);
double L0 = SurMath.DMStoRad(117);
Ellipsoid ellipsoid = Ellipsoid.CreateXiAn1980();
IProj proj = new GaussProj(ellipsoid);
var xy = proj.BLtoXY(B, L, L0, 0, 0);
Assert.AreEqual(1944325.8030, xy.X, 0.001);
Assert.AreEqual(240451.5085, xy.Y, 0.001);
}
}