如何从我的文本文件中读取值，并存储在变量中进行数学计算
本文关键字：变量 存储 计算 我的 文本 文件 读取 | 更新日期: 2023-09-27 18:02:28
int a=6378137;
int A0=6367449;
double B0=16038.43;
double C0=16.83261;
double D0=0.021984;
double E0= 0.000313;
double k0=0.9996;
double e1=0.081819;
double e1sq = 0.006739497;
double m = -120;
double l = 60;
int n = 11;
int o = 6 *n- 183;
double p = ((m - o) * 0.01744444);
double q = l * 0.0174444;
double r = m * 0.0174444;
double s = a * (1 - e1 * e1) / (1 - ((e1 * Math.Sin(q)) * (e1 * Math.Sin(q))*(e1 * Math.Sin(q))));
double t = a / ((1 - (e1 * Math.Sin(q))));
double v = A0 * q - B0 * Math.Sin(2 * q) + C0 * Math.Sin(4 * q) - D0 * Math.Sin(6 * q) + E0 * Math.Sin(8 * q);
double x = v * k0;
double y = t * Math.Sin(q) * Math.Cos(q) / 2;
double z = (t * Math.Sin(q) * (Math.Cos(q)* Math.Cos(q)*Math.Cos(q)) / 24) * (5 - (Math.Tan(q)* Math.Tan(q)) + 9 * e1sq * (Math.Cos(q) *Math.Cos(q)) + 4 * e1sq *e1sq * (Math.Cos(q)*Math.Cos(q)*Math.Cos(q)*Math.Cos(q)) ) * k0;
double AA = t * Math.Cos(q) * k0;
double AB = (Math.Cos(q)*Math.Cos(q)*Math.Cos(q)) * (t / 6) * (1 - (Math.Tan(q) *Math.Tan(q)) + e1sq * (Math.Cos(q) *Math.Cos(q))) * k0;
double AC = ((p * p * p * p * p * p) * t * Math.Sin(q) * (Math.Cos(q) * Math.Cos(q) * Math.Cos(q) * Math.Cos(q) * Math.Cos(q)) / 720) * (61 - 58 * (Math.Tan(q) * Math.Tan(q)) + (Math.Tan(q) * Math.Tan(q) * Math.Tan(q) * Math.Tan(q)) + 270 * e1sq * (Math.Cos(q) * Math.Cos(q)) - 330 * e1sq * (Math.Sin(q) * Math.Sin(q))) * k0;
double AD = (x+y*p*p+z*(p*p*p*p));
double AE;
double AF;
if (AD < 0)
{
AE = (10000000 + AD);
}
else {
AE = AD;
}
AF = 500000 + (AA * p + AB * (p * p * p));
using (StreamWriter writer = new StreamWriter(@"C:'Users'dcf'Desktop'out.txt"))
{
writer.WriteLine("north:{0}",AE);
writer.WriteLine("east:{0}",AF);
}
这是我的代码，其中m和l值应该有文本文件的值。我的文本文件看起来像
m, l
56536716.534, 43843327.880
56584832.507, 43501825.240
56669161.226, 43199470.844
56715913.464, 42856275.950
56782842.247, 42435886.070
56810019.308, 42071222.859
56836462.600, 41706208.191
56900872.591, 41282609.754
我需要直接从我的文本文件中读取m和l值来进行计算。
假设m和l的值在你的文本文件中是交替的
首先你应该读入文件，用分隔符分隔值(例如:"，")并将它们分配给变量m和l。然后您可以为每个
调用计算函数。 private void readFile(pathToFile)
{
var textfilecontent= File.ReadAllLines(pathToFile);
for (int i = 1; i < textfilecontent.Length; i++)
{
// splits the values at delimiter ,
var valPerLine = textfilecontent[i].Split(',');
// only works if you have only two numbers per line
calculate(Convert.ToDouble(valPerLine[0]), Convert.ToDouble(valPerLine[1]))
}
}
private void calculate(double m, double l)
{
// your formulas, m and l should now be inserted as parameter
int a=6378137;
int A0=6367449;
double B0=16038.43;
double C0=16.83261;
double D0=0.021984;
double E0= 0.000313;
double k0=0.9996;
double e1=0.081819;
double e1sq = 0.006739497;
//double m = -120;
//double l = 60;
int n = 11;
int o = 6 *n- 183;
double p = ((m - o) * 0.01744444);
double q = l * 0.0174444;
double r = m * 0.0174444;
double s = a * (1 - e1 * e1) / (1 - ((e1 * Math.Sin(q)) * (e1 * Math.Sin(q))*(e1 * Math.Sin(q))));
double t = a / ((1 - (e1 * Math.Sin(q))));
double v = A0 * q - B0 * Math.Sin(2 * q) + C0 * Math.Sin(4 * q) - D0 * Math.Sin(6 * q) + E0 * Math.Sin(8 * q);
double x = v * k0;
double y = t * Math.Sin(q) * Math.Cos(q) / 2;
double z = (t * Math.Sin(q) * (Math.Cos(q)* Math.Cos(q)*Math.Cos(q)) / 24) * (5 - (Math.Tan(q)* Math.Tan(q)) + 9 * e1sq * (Math.Cos(q) *Math.Cos(q)) + 4 * e1sq *e1sq * (Math.Cos(q)*Math.Cos(q)*Math.Cos(q)*Math.Cos(q)) ) * k0;
double AA = t * Math.Cos(q) * k0;
double AB = (Math.Cos(q)*Math.Cos(q)*Math.Cos(q)) * (t / 6) * (1 - (Math.Tan(q) *Math.Tan(q)) + e1sq * (Math.Cos(q) *Math.Cos(q))) * k0;
double AC = ((p * p * p * p * p * p) * t * Math.Sin(q) * (Math.Cos(q) * Math.Cos(q) * Math.Cos(q) * Math.Cos(q) * Math.Cos(q)) / 720) * (61 - 58 * (Math.Tan(q) * Math.Tan(q)) + (Math.Tan(q) * Math.Tan(q) * Math.Tan(q) * Math.Tan(q)) + 270 * e1sq * (Math.Cos(q) * Math.Cos(q)) - 330 * e1sq * (Math.Sin(q) * Math.Sin(q))) * k0;
double AD = (x+y*p*p+z*(p*p*p*p));
double AE;
double AF;
if (AD < 0)
{
AE = (10000000 + AD);
}
else
{
AE = AD;
}
AF = 500000 + (AA * p + AB * (p * p * p));
using (StreamWriter writer = new StreamWriter(@"C:'Users'dcf'Desktop'out.txt"))
{
writer.WriteLine("north:{0}",AE);
writer.WriteLine("east:{0}",AF);
}
}