高斯投影正反算及邻带换算

话不多说，直接上代码 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace _高斯投影 { public partial class Form2 : Form { public Form2() { InitializeComponent(); } double DD2RAD(double n) { double DD; double MM; double SS; DD = Math.Floor(n); MM = Math.Floor((n - DD) * 100); SS = ((n - DD) * 100 - MM) * 100; n = (DD + MM / 60.0 + SS / 3600.0) * Math.PI / 180.0; return n; } private void Form2_Load(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { double B, L; B = double.Parse(textBox1.Text); B = DD2RAD(B); L = double.Parse(textBox2.Text); L = DD2RAD(L); double L0 = double.Parse(textBox3.Text); L0 = DD2RAD(L0); double a = double.Parse(textBoxa.Text); double e2 = double.Parse(textBoxe2.Text); double A = 1.0 + 3.0 * e2 / 4 + 45.0 * e2 * e2 / 64 + 175.0 * Math.Pow(e2, 3) / 256 + 11025.0 * Math.Pow(e2, 4) / 16384 + 43659.0 * Math.Pow(e2, 5) / 65536; double B0 = 3.0 * e2 / 4 + 15.0 * e2 * e2 / 16 + 525.0 * Math.Pow(e2, 3) / 512 + 2205.0 * Math.Pow(e2, 4) / 2048 + 72765.0 * Math.Pow(e2, 5) / 65536; double C = 15.0 * e2 * e2 / 64 + 105.0 * Math.Pow(e2, 3) / 256 + 2205.0 * Math.Pow(e2, 4) / 4096 + 10395.0 * Math.Pow(e2, 5) / 16384; double D = 35.0 * Math.Pow(e2, 3) / 512 + 315.0 * Math.Pow(e2, 4) / 2048 + 31185.0 * Math.Pow(e2, 5) / 131072; double α = A * a * (1 - e2);//α double β = -B0 * a * (1 - e2) / 2.0;//β double γ = C * a * (1 - e2) / 4.0; double σ = -D * a * (1 - e2) / 6.0; double X