////获取特定点的邻居数列
public static List <point> get_Neighbour(point thePoint)
{
double distance;
List <point> neighbour = new List <point>();
foreach (point points in setOfPoints)
{
//distance = dist(thePoint, points);
distance = CoordinateConverter.getUTMDistance(thePoint.longitude, thePoint.latitude, points.longitude, points.latitude);
if (distance <= Eps)
{
neighbour.Add(points);
}
}
neighbour.Remove(thePoint);
return(neighbour);
}
/// <summary>
/// 根据经纬度，计算半径radius距离内的所有单位工程，按距离排序输出
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="radius"></param>
/// <param name="firmList"></param>
/// <returns></returns>
public Dictionary <CRailwayDWProj, double> getNearDWProj(double x, double y, double radius, List <CRailwayDWProj> dwProjectList)
{
Dictionary <CRailwayDWProj, double> dict = new Dictionary <CRailwayDWProj, double>(dwProjectList.Count);
double len;
//getNearPos(x, y, out mm, out xx, out yy, out zz, out dir);
for (int i = 0; i < dwProjectList.Count; i++)
{
len = CoordinateConverter.getUTMDistance(dwProjectList[i].mLongitude_Mid, dwProjectList[i].mLatitude_Mid, x, y);
if (len < radius)
{
dict.Add(dwProjectList[i], len);
}
}
var dictSort = from d in dict orderby d.Value ascending select d;
return(dict);
}
/// <summary>
/// 根据里程（DK123+45），计算半径radius距离内的所有单位，按距离排序输出
/// </summary>
/// <param name="dkCode"></param>
/// <param name="radius"></param>
/// <param name="firmList"></param>
/// <returns></returns>
public Dictionary <CRailwayFirm, double> getNearFirms(string dkCode, double radius, List <CRailwayFirm> firmList)
{
//double[] lenList = new double[firmList.Count];
Dictionary <CRailwayFirm, double> dict = new Dictionary <CRailwayFirm, double>(firmList.Count);
double xx, yy, zz, dir, len;
//double xx1,yy1,zz1,dir1;
getPosbyMeter(dkCode, out xx, out yy, out zz, out dir);
for (int i = 0; i < firmList.Count; i++)
{
len = CoordinateConverter.getUTMDistance(firmList[i].CenterLongitude, firmList[i].CenterLatitude, xx, yy);
if (len < radius)
{
dict.Add(firmList[i], len);
}
}
var dictSort = from d in dict orderby d.Value ascending select d;
return(dict);
}
/// <summary>
/// 根据经纬度，计算半径radius距离内的所有工点，按距离排序输出
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="radius"></param>
/// <param name="firmList"></param>
/// <returns></returns>
public Dictionary <CRailwayProject, double> getNearProject(double x, double y, double radius, List <CRailwayProject> projectList)
{
Dictionary <CRailwayProject, double> dict = new Dictionary <CRailwayProject, double>(projectList.Count);
double len, len_start, len_mid, len_end;
//getNearPos(x, y, out mm, out xx, out yy, out zz, out dir);
for (int i = 0; i < projectList.Count; i++)
{
len_start = CoordinateConverter.getUTMDistance(projectList[i].mLongitude_Start, projectList[i].mLatitude_Start, x, y);
len_mid = CoordinateConverter.getUTMDistance(projectList[i].CenterLongitude, projectList[i].CenterLatitude, x, y);
len_end = CoordinateConverter.getUTMDistance(projectList[i].mLongitude_End, projectList[i].mLatitude_End, x, y);
len = getMinLen(len_start, len_mid, len_end);
if (len < radius)
{
dict.Add(projectList[i], len);
}
}
var dictSort = from d in dict orderby d.Value ascending select d;
return(dict);
}
public double getUTMDistance(double x, double y)
{
return(CoordinateConverter.getUTMDistance(mX, mY, x, y));
}
//// 给定里程，计算经纬度朝向坐标
//public CRWPosition getPosbyMeter(double m)
//{
// CRWPosition pos = new CRWPosition();
// int index = 0;
// //x = y = z = 0; dir = 0;
// if (m < start)
// {
// pos.longitude = longitude[0];
// pos.latitude = latitude[0];
// pos.altitude = altitude[0];
// if (heading != null)
// pos.heading = heading[0];
// return pos;
// }
// if (m >= end)
// {
// pos.longitude = longitude[mPointNum - 1];
// pos.latitude = latitude[mPointNum - 1];
// pos.altitude = altitude[mPointNum - 1];
// if (heading != null)
// pos.heading = heading[mPointNum - 1];
// return pos;
// }
// int nm = (int)m;
// if (nm % 10 == 9)
// {
// index = nm / 10 + 1;
// pos.longitude = longitude[index];
// pos.latitude = latitude[index];
// pos.altitude = altitude[index];
// if (heading != null)
// pos.heading = heading[index];
// }
// else
// {
// index = nm / 10;
// if (nm % 10 == 0)
// {
// pos.longitude = longitude[index];
// pos.latitude = latitude[index];
// pos.altitude = altitude[index];
// if (heading != null)
// pos.heading = heading[index];
// }
// else
// {
// double t = (m - nm) / 10;
// pos.longitude = longitude[index] * (1 - t) + longitude[index + 1] * t;
// pos.latitude = latitude[index] * (1 - t) + latitude[index + 1] * t;
// pos.altitude = altitude[index] * (1 - t) + altitude[index + 1] * t;
// if (heading != null)
// pos.heading = heading[index] * (1 - t) + heading[index + 1] * t;
// }
// }
// return pos;
//}
/// <summary>
/// 给定经纬度，输出里程与距离
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="mileage"></param>
/// <param name="distance"></param>
public void getMeterbyPos(double x, double y, out double mileage, out double distance)
{
int errorNum = 0;
double ux, uy;
CoordinateConverter.LatLonToUTMXY(y, x, out ux, out uy);
distance = 0;
mileage = 0;
try
{
mileage = 0;
int count = mPointNum;
double mindist = (utmX[0] - ux) * (utmX[0] - ux) +
(utmY[0] - uy) * (utmY[0] - uy);
double dist = 10;
int step = (int)Math.Sqrt(count) + 1;
//int i;
int index = 0;
for (int i = step; i < count; i += step)
{
dist = (utmX[i] - ux) * (utmX[i] - ux) + (utmY[i] - uy) * (utmY[i] - uy);
if (dist < mindist)
{
mindist = dist;
index = i;
}
errorNum = i;
}
int index2 = index;
int j = index - step;
if (j < 0)
{
j = 0;
}
for (; j < index + step && j < count; j++)
{
dist = (utmX[j] - ux) * (utmX[j] - ux) + (utmY[j] - uy) * (utmY[j] - uy);
if (dist < mindist)
{
mindist = dist;
index2 = j;
}
errorNum = -j;
}
if (index2 > 0 && index2 < count - 1)
{
double d1, d2;
d1 = Math.Sqrt(Math.Pow(utmX[index2 - 1] - ux, 2) + Math.Pow(utmY[index2 - 1] - uy, 2));
d2 = Math.Sqrt(Math.Pow(utmX[index2 + 1] - ux, 2) + Math.Pow(utmY[index2 + 1] - uy, 2));
mileage = meter[index2 - 1] + (meter[index2 + 1] - meter[index2 - 1]) * d1 / (d1 + d2);
}
else if (index2 == 0)
{
double d1, d2;
d1 = Math.Sqrt(Math.Pow(utmX[0] - ux, 2) + Math.Pow(utmY[0] - uy, 2));
d2 = Math.Sqrt(Math.Pow(utmX[1] - ux, 2) + Math.Pow(utmY[1] - uy, 2));
mileage = (meter[1] - meter[0]) * d1 / (d1 + d2);
}
else
{
double d1, d2;
d1 = Math.Sqrt(Math.Pow(utmX[count - 2] - ux, 2) + Math.Pow(utmY[count - 2] - uy, 2));
d2 = Math.Sqrt(Math.Pow(utmX[count - 1] - ux, 2) + Math.Pow(utmY[count - 1] - uy, 2));
mileage = meter[count - 2] + (meter[count - 1] - meter[count - 2]) * d1 / (d1 + d2);
}
double mx, my, mz, md;
getPosbyLocalMeter(mileage, out mx, out my, out mz, out md);
if (mIsReverse)
{
mileage = mStart - mileage;
}
else
{
mileage = mStart + mileage;
}
distance = CoordinateConverter.getUTMDistance(mx, my, x, y);
//return mileage;
}
catch (Exception e)
{
Console.WriteLine("error num" + errorNum);
//return -1;
}
}
