private void 反算ToolStripMenuItem_Click(object sender, EventArgs e)
{
zf = -1;
initialize();
dataGridView1.AllowUserToAddRows = false;
#region 数据导入
try
{
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
B1.Add(Caculates.dmstohudu(Convert.ToDouble(dataGridView1.Rows[i].Cells[1].Value))); //(-90~90)
L1.Add(Caculates.dmstohudu(Convert.ToDouble(dataGridView1.Rows[i].Cells[2].Value))); //(0~360)
B2.Add(Caculates.dmstohudu(Convert.ToDouble(dataGridView1.Rows[i].Cells[4].Value))); //(0~360)
L2.Add(Caculates.dmstohudu(Convert.ToDouble(dataGridView1.Rows[i].Cells[5].Value)));
}
}
catch
{
MessageBox.Show("请输入正确的数据！");
return;
}
#endregion
#region 反算
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
double u1, u2, a1, a2, b1, b2;//辅助量
double p, q, l0, l, dl, gl = 0, gl0;
double a12, sin_d, cos_d, d, M, sin_m, cos_m;
double kk2, kk4, e14, e16, aaf, bbf, ccf; //定义球面计算变量
double k2, k4, k6, af, bf, cf; //定义迭代变量，求边长归化量
#region 计算辅助量
u1 = Math.Atan(Math.Sqrt(1 - e1) * Math.Tan(B1[i])); //归化纬度
u2 = Math.Atan(Math.Sqrt(1 - e1) * Math.Tan(B2[i]));
l = L2[i] - L1[i]; //椭球面经差
a1 = Math.Sin(u1) * Math.Sin(u2);
a2 = Math.Cos(u1) * Math.Cos(u2);
b1 = Math.Cos(u1) * Math.Sin(u2);
b2 = Math.Sin(u1) * Math.Cos(u2);
l0 = l;
#endregion
#region 计算起点大地方位角
do
{
gl0 = gl;
p = Math.Cos(u2) * Math.Sin(l0);//第一次计算时先以椭球面经差代替球面经差
q = b1 - b2 * Math.Cos(l0);
a12 = Math.Atan(p / q);
if (p > 0)
{
if (q > 0)
{
a12 = Math.Abs(a12);
}
else
{
a12 = Math.PI - Math.Abs(a12);
}
}
else
{
if (q < 0)
{
a12 = Math.PI + Math.Abs(a12);
}
else
{
a12 = Math.PI * 2 - Math.Abs(a12);
}
}
sin_d = p * Math.Sin(a12) + q * Math.Cos(a12);
cos_d = a1 + a2 * Math.Cos(l0);
d = Math.Atan(sin_d / cos_d);
if (cos_d > 0)
{
d = Math.Abs(d);
}
else
{
d = Math.PI - Math.Abs(d);
}
sin_m = Math.Cos(u1) * Math.Sin(a12);
cos_m = Math.Sqrt(1 - sin_m * sin_m);
M = Math.Atan(Math.Tan(u1) / Math.Cos(a12));//
kk2 = e1 * cos_m * cos_m;
kk4 = kk2 * kk2;
e14 = e1 * e1;
e16 = e1 * e1 * e1;
aaf = (e1 / 2 + e14 / 8 + e16 / 16) - e1 * (1 + e1) * kk2 / 16 + 3 * e1 * kk4 / 128;
bbf = e1 * (1 + e1) * kk2 / 16 - e1 * kk4 / 32;
ccf = e1 * kk4 / 256;
gl = sin_m * (aaf * d + bbf * Math.Sin(d) * Math.Cos(2 * M + d) + ccf * Math.Sin(2 * d) * Math.Cos(4 * M + 2 * d));
l0 = l + gl;
dl = Math.Abs(gl - gl0);
} while (dl * 206265 > 0.00001);
//MessageBox.Show(Caculates.hudutodms(a12).ToString());
A12.Add(a12);
#endregion
#region 计算大地线长度
k2 = e2 * cos_m * cos_m;
k4 = k2 * k2;
k6 = k2 * k2 * k2;
af = (1 - (k2) / 4 + (7 * k4) / 64 - (15 * k6) / 256) / b; //α
bf = k2 / 4 - k4 / 8 + (37 * k6) / 512; //β
cf = k4 / 128 - k6 / 128; //γ
double s = (d - bf * Math.Sin(d) * Math.Cos(2 * M + d) - cf * Math.Sin(2 * d) * Math.Cos(4 * M + 2 * d)) / af;
//MessageBox.Show(s.ToString());
S.Add(s);
#endregion
#region 计算反方位角
double a21;
a21 = Math.Atan(Math.Cos(u1) * Math.Sin(l0) / (b1 * Math.Cos(l0) - b2));
if (a21 < 0)
{
a21 = a21 + Math.PI * 2;
}
else if (a21 > Math.PI * 2)
{
a21 = a21 - Math.PI * 2;
}
if (a12 < Math.PI && a21 < Math.PI)
{
a21 = a21 + Math.PI;
}
if (a12 > Math.PI && a21 > Math.PI)
{
a21 = a21 - Math.PI;
}
//MessageBox.Show(Caculates.hudutodms(a21).ToString());
A21.Add(a21);
#endregion
#region 数据导出
dataGridView1.Rows[i].Cells[6].Value = Math.Round(Caculates.hudutodms(A12[i]), 5);//0.1''
dataGridView1.Rows[i].Cells[7].Value = Math.Round(Caculates.hudutodms(A21[i]), 5);
dataGridView1.Rows[i].Cells[8].Value = Math.Round(S[i], 3);
#endregion
}
#endregion
#region 计算报告
richTextBox1.Text = "**************************************************\n\n";
richTextBox1.Text += " 大地主题反算\n\n";
richTextBox1.Text += "**************************************************\n\n";
richTextBox1.Text += "----------------------统计数据---------------------\n";
richTextBox1.Text += "计算点对总数 ：" + dataGridView1.Rows.Count + "\n";
richTextBox1.Text += "椭球长半轴： " + a + "\n";
richTextBox1.Text += "椭球扁率： " + f + "\n\n";
richTextBox1.Text += "----------------------计算结果---------------------\n";
richTextBox1.Text += "点名 \t纬度(B) \t经度(L) \t大地方位角(A) \t大地线长(S)\n";
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[0].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[1].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[2].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[6].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[8].Value) + "\n";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[3].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[4].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[5].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[7].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[8].Value) + "\n\n";
}
#endregion
}
private void 正算ToolStripMenuItem_Click(object sender, EventArgs e)
{
zf = 1;
initialize();
dataGridView1.AllowUserToAddRows = false;
#region 数据导入
try
{
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
B1.Add(Caculates.dmstohudu(Convert.ToDouble(dataGridView1.Rows[i].Cells[1].Value))); //(-90~90)
L1.Add(Caculates.dmstohudu(Convert.ToDouble(dataGridView1.Rows[i].Cells[2].Value))); //(0~360)
A12.Add(Caculates.dmstohudu(Convert.ToDouble(dataGridView1.Rows[i].Cells[3].Value))); //(0~360)
S.Add(Convert.ToDouble(dataGridView1.Rows[i].Cells[4].Value));
}
}
catch
{
MessageBox.Show("请输入正确的数据！");
return;
}
#endregion
#region 正算
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
#region 计算归化纬度辅助函数
double sin_u1, cos_u1, sin_u2, sin_m, cos_m, cot_M, M, tan_l, l, gl;//球面元素变量
double W1 = Math.Sqrt(1 - e1 * Math.Sin(B1[i]) * Math.Sin(B1[i]));
sin_u1 = Math.Sin(B1[i]) * Math.Sqrt(1 - e1) / W1;
cos_u1 = Math.Cos(B1[i]) / W1;
sin_m = cos_u1 * Math.Sin(A12[i]);
cos_m = Math.Sqrt(1 - sin_m * sin_m);
cot_M = (cos_u1 * Math.Cos(A12[i])) / sin_u1;
M = Math.Atan(1 / cot_M);
#endregion
#region 计算球面长度
double k2, k4, k6, af, bf, cf, d0, d1, ds;//定义迭代变量，求边长归化量
k2 = e2 * cos_m * cos_m;
k4 = k2 * k2;
k6 = k2 * k2 * k2;
af = (1 - (k2) / 4 + (7 * k4) / 64 - (15 * k6) / 256) / b; //α
bf = k2 / 4 - k4 / 8 + (37 * k6) / 512; //β
cf = k4 / 128 - k6 / 128; //γ
d0 = af * S[i]; //迭代初值σ0
do
{
d1 = af * S[i] + bf * Math.Sin(d0) * Math.Cos(2 * M + d0) + cf * Math.Sin(2 * d0) * Math.Cos(4 * M + 2 * d0); //σ
ds = Math.Abs(d1 - d0);
d0 = d1;
}while (ds * 206265 > 0.00001);//限差0.00001秒(不太清楚10 -10是啥意思)
#endregion
#region 计算经差改正数
double kk2, kk4, e14, e16, aaf, bbf, ccf;//定义球面计算变量
kk2 = e1 * cos_m * cos_m;
kk4 = kk2 * kk2;
e14 = e1 * e1;
e16 = e1 * e1 * e1;
aaf = (e1 / 2 + e14 / 8 + e16 / 16) - e1 * (1 + e1) * kk2 / 16 + 3 * e1 * kk4 / 128;
bbf = e1 * (1 + e1) * kk2 / 16 - e1 * kk4 / 32;
ccf = e1 * kk4 / 256;
//经差改正数
gl = sin_m * (aaf * d1 + bbf * Math.Sin(d1) * Math.Cos(2 * M + d1) + ccf * Math.Sin(2 * d1) * Math.Cos(4 * M + 2 * d1));
#endregion
#region 计算终点大地坐标及大地方位角
sin_u2 = sin_u1 * Math.Cos(d1) + cos_u1 * Math.Cos(A12[i]) * Math.Sin(d1);
B2.Add(Math.Atan(sin_u2 / (Math.Sqrt(1 - e1) * Math.Sqrt(1 - sin_u2 * sin_u2))));
tan_l = Math.Sin(A12[i]) * Math.Sin(d1) / (cos_u1 * Math.Cos(d1) - sin_u1 * Math.Sin(d1) * Math.Cos(A12[i]));
l = Math.Atan(tan_l);
if (Math.Sin(A12[i]) > 0)
{
if (tan_l > 0)
{
l = Math.Abs(l);
}
else
{
l = Math.PI - Math.Abs(l);
}
}
else
{
if (tan_l < 0)
{
l = -Math.Abs(l);
}
else
{
l = Math.Abs(l) - Math.PI;
}
}
L2.Add(L1[i] + l - gl);
double tan_a21, a21;
tan_a21 = cos_u1 * Math.Sin(A12[i]) / (cos_u1 * Math.Cos(d1) * Math.Cos(A12[i]) - sin_u1 * Math.Sin(d1));
a21 = Math.Atan(tan_a21);
if (Math.Sin(A12[i]) < 0)
{
if (tan_a21 > 0)
{
a21 = Math.Abs(a21);
}
else
{
a21 = Math.PI - Math.Abs(a21);
}
}
else
{
if (tan_a21 > 0)
{
a21 = Math.PI + Math.Abs(a21);
}
else
{
a21 = Math.PI * 2 - Math.Abs(a21);
}
}
A21.Add(a21);
#endregion
#region 数据导出
dataGridView1.Rows[i].Cells[6].Value = Math.Round(Caculates.hudutodms(B2[i]), 5);//0.1''
dataGridView1.Rows[i].Cells[7].Value = Math.Round(Caculates.hudutodms(L2[i]), 5);
dataGridView1.Rows[i].Cells[8].Value = Math.Round(Caculates.hudutodms(A21[i]), 5);
#endregion
}
#region 计算报告
richTextBox1.Text = "**************************************************\n\n";
richTextBox1.Text += " 大地主题正算\n\n";
richTextBox1.Text += "**************************************************\n\n";
richTextBox1.Text += "----------------------统计数据---------------------\n";
richTextBox1.Text += "计算点对总数 ：" + dataGridView1.Rows.Count + "\n";
richTextBox1.Text += "椭球长半轴： " + a + "\n";
richTextBox1.Text += "椭球扁率： " + f + "\n\n";
richTextBox1.Text += "----------------------计算结果---------------------\n";
richTextBox1.Text += "点名 \t纬度(B) \t经度(L) \t大地方位角(A) \t大地线长(S)\n";
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[0].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[1].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[2].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[3].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[4].Value) + "\n";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[5].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[6].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[7].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[8].Value) + "\t";
richTextBox1.Text += string.Format("{0, -8}", dataGridView1.Rows[i].Cells[4].Value) + "\n\n";
}
#endregion
#endregion
}