using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows.Forms; namespace 改为相关项目的命名空间 { /// <summary> /// 常用角度处理类 /// </summary> /// <author>llc3s@foxmail.com</author> public class CommonAngleFun { #region 十进制度转化为弧度 /// <summary> /// 十进制度转化为弧度 /// </summary> /// <param name="dd"></param> /// <returns></returns> public static double deg2rad(double dd) { return dd * Math.PI / 180.0; } #endregion #region 空格分隔的度分秒转化为十进制度 /// <summary> /// 空格分隔的度分秒转化为十进制度 /// </summary> /// <param name="temp"></param> public static double str2dfm(string temp) { temp = temp.Trim(); double[] ang = new double[3]; double j = -1.0; //验证是否为合格的度分秒 try { string[] angles = temp.Split(" ".ToCharArray()); if (angles.Length != 3) { MessageBox.Show("度分秒格式不合格"); return j; } for (int i = 0; i < 3; i++) { ang[i] = double.Parse(angles[i]); } j = ang[0] + ang[1] / 60 + ang[2] / 3600; } catch { MessageBox.Show("不是合格的度分秒数据,度分秒之间以空格分隔"); } return j; } #endregion #region 空格分隔的度分秒字符串转化为弧度 /// <summary> /// 空格分隔的度分秒转化为弧度 /// </summary> /// <param name="temp"></param> /// <returns></returns> public static double str2rad(string temp) { return deg2rad(str2dfm(temp)); } #endregion #region 弧度转化为十进制度 /// <summary> /// 弧度转化为十进制度分秒 /// </summary> /// <param name="rad"></param> public static double rad2Degree(double rad) { double degree = rad * 180 / Math.PI; return degree; } #endregion #region 十进制度转化为度分秒 /// <summary> /// 十进制度转化为度分秒 /// </summary> /// <param name="degree"></param> /// <param name="n">表示十进制度转化为度分秒时秒位保留的小数位数</param> /// <returns></returns> public static double[] degree2DFM(double degree,int n) { double[] dfm = new double[3]; double d = Math.Floor(degree); double f = Math.Floor((degree - d) * 60); double m = Math.Round(((degree - d) * 60 - f) * 60,0); dfm[0] = d; dfm[1] = f; dfm[2] = m; return dfm; } #endregion #region 度分秒转化为空格分隔的字符串 /// <summary> /// 度分秒转化为空格分隔的字符串 /// </summary> /// <param name="dfm"></param> /// <returns></returns> public static string dfm2Str(double[] dfm) { string str = string.Empty; for (int i = 0; i < dfm.Length; i++) { str += dfm[i].ToString() + " "; } return str; } #endregion #region 弧度转化为空格分隔的度分秒字符串 /// <summary> /// 弧度转化为空格分隔的度分秒字符串 /// </summary> /// <param name="rad"></param> /// <param name="n">十进制度转化为度分秒时秒位的小数位数</param> /// <returns></returns> public static string rad2StrDfm(double rad,int n) { return dfm2Str(degree2DFM(rad2Degree(rad),n)); } #endregion #region 夹角计算 /// <summary> /// 夹角计算.用于测量中方向观测法或类似的夹角计算 /// </summary> /// <param name="ang1"></param> /// <param name="ang2"></param> /// <returns></returns> private double[] jiajiao(double[] ang1, double[] ang2) { if (ang1.Length != 3 || ang2.Length != 3) { MessageBox.Show("错误"); return null; } else { //预处理 //度位待求方向是否大于0方向,不大于,加360; if (ang2[0] < ang1[0]) ang2[0] += 360; //bool mj = false; //bool dj = false; //度/分借位标记. if (ang2[2] < ang1[2]) { //mj = true; ang2[2] += 60; ang2[1] -= 1; //秒位加60,分位-1 } if (ang2[1] < ang1[1]) { //dj=true; ang2[1] += 60; ang2[0] -= 1; //分位加60,度位-1; } //开始计算 double[] result = new double[3]; for (int i = 0; i < 3; i++) { result[i] = ang2[i] - ang1[i]; } return result; } } #endregion #region 方位角计算 /// <summary> /// 方位角计算(第二个点减第一个点) /// </summary> /// <param name="x1">第一个点</param> /// <param name="y1">第一个点</param> /// <param name="x2">第二个点</param> /// <param name="y2">第二个点</param> /// <returns></returns> public static double fangweijiao(double x1, double y1, double x2, double y2) { double fjrad = Math.Atan(Math.Abs((y1 - y2) / (x1 - x2))); //判断象限 //第一象限 if (y2 - y1 > 0 && x2 - x1 > 0) return fjrad; //第二象限 else if (y2 - y1 > 0 && x2 - x1 < 0) { return Math.PI - fjrad; } else if (y2 - y1 < 0 && x2 - x1 < 0) { //第三象限 return Math.PI + fjrad; } else if (y2 - y1 < 0 && x2 - x1 > 0) { //第四象限 return (Math.PI * 2 - fjrad); } else return -1; } #endregion #region 任意两方位角的夹角计算 #endregion } }