大地高斯正反算-c#.docVIP

大地高斯正反算-C# 代码如下 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowsFormsApplication3 { public partial class Form1 : Form { double a, E,E1,bbb; public Form1() { InitializeComponent(); } private void menuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e) { } private void toolStripTextBox1_Click(object sender, EventArgs e) { } private void toolStripMenuItem1_Click(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { if (a != 6378245.00 a != 6378137 a != 6378137 a!=6378140) { textBox3.Text = 请?选?择?坐?标括?系μ; textBox4.Text = 请?选?择?坐?标括?系μ; } else { int du, fen, miao; double B, L, X; double N, x, y, t, n, m, m0, m2, m4, m6, m8,l; B = Convert.ToDouble(textBox1.Text) * Math.PI / 180 + Convert.ToDouble(textBox2.Text)/60 * Math.PI / 180 + Convert.ToDouble(textBox9.Text)/3600 * Math.PI / 180; L = Convert.ToDouble(textBox10.Text) * Math.PI / 180 + Convert.ToDouble(textBox11.Text)/60 * Math.PI / 180 + Convert.ToDouble(textBox12.Text)/3600 * Math.PI / 180; ; l = L - Convert.ToInt16((L-3.0) / 6) * 6-3.0 ; l = l * Math.PI / 180; N = a / Math.Pow(1 - E * Math.Sin(B) * Math.Sin(B), 0.5); m0 = a * (1 - E); m2 = 1.5 * E * m0; m4 = 5 / 4 * E * m2; m6 = 7 / 6 * E * m4; m8 = 9 / 8 * E * m6; X = (m0 + 0.5 * m2 + 3 / 8 * m4 + 5 / 16 * m6 + 35 / 1