public void TestRadtoDMS() { var rad = SurMath.DMStoRad(101.03201); var angle = SurMath.Rad2DMS(rad); // 1.763752656690170 // 101.03201 Assert.AreEqual(101, angle.d); Assert.AreEqual(3, angle.m); Assert.AreEqual(20.1, angle.s, 1e-8); angle = SurMath.Rad2DMS(-1.763752656690170); Assert.AreEqual(-101, angle.d); Assert.AreEqual(-3, angle.m); Assert.AreEqual(-20.1, angle.s, 1e-8); angle = SurMath.Rad2DMS(0.0290888208665722); Assert.AreEqual(1, angle.d); Assert.AreEqual(40, angle.m); Assert.AreEqual(0, angle.s, 1e-8); angle = SurMath.Rad2DMS(-0.0290888208665722); Assert.AreEqual(-1, angle.d); Assert.AreEqual(-40, angle.m); Assert.AreEqual(0, angle.s, 1e-8); angle = SurMath.Rad2DMS(-0.0290936690033833000); Assert.AreEqual(-1, angle.d); Assert.AreEqual(-40, angle.m); Assert.AreEqual(-1, angle.s, 1e-8); }
public void TestDMStoRad() { double rad = SurMath.DMStoRad(101.03201); Assert.AreEqual(1.763752656690170, rad, 1e-14); rad = SurMath.DMStoRad(-101.03201); Assert.AreEqual(-1.763752656690170, rad, 1e-14); rad = SurMath.DMStoRad(1.4001); Assert.AreEqual(0.0290936690033833000, rad, 1e-14); rad = SurMath.DMStoRad(1.4000); Assert.AreEqual(0.0290888208665722, rad, 1e-14); rad = SurMath.DMStoRad(-1.4000); Assert.AreEqual(-0.0290888208665722, rad, 1e-14); }
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); } }
public void TestXYtoBL() { { double x = 2433586.692, y = 250547.403; double L0 = SurMath.DMStoRad(111); Ellipsoid ellipsoid = Ellipsoid.CreateBeijing1954(); IProj proj = new GaussProj(ellipsoid); //IProj proj = new UTMProj(ellipsoid); var BL = proj.XYtoBL(x, y, L0, 0, 0); Assert.AreEqual(21.58470845, SurMath.RadtoDMS(BL.B), 1e-8); Assert.AreEqual(113.25314880, SurMath.RadtoDMS(BL.L), 1e-8); x = 3380330.773; y = 320089.9761; BL = proj.XYtoBL(x, y, L0, 0, 0); //此处的秒按常规处理会出现59.999996秒的问题 Assert.AreEqual(30.30, SurMath.RadtoDMS(BL.B), 1e-7); Assert.AreEqual(114.20, SurMath.RadtoDMS(BL.L), 1e-7); } //数据来自《大地测量学基础》2版P194 { double x = 1944359.6070, y = 240455.4563; double L0 = SurMath.DMStoRad(117); Ellipsoid ellipsoid = Ellipsoid.CreateBeijing1954(); IProj proj = new GaussProj(ellipsoid); //IProj proj = new UTMProj(ellipsoid); var BL = proj.XYtoBL(x, y, L0, 0, 0); Assert.AreEqual(17.33557338, SurMath.RadtoDMS(BL.B), 1e-8); Assert.AreEqual(119.15521150, SurMath.RadtoDMS(BL.L), 1e-8); } }