/// <summary>
/// Find the intersection of data with fix
/// </summary>
/// <param name="data"></param>
/// <param name="fix"></param>
/// <returns></returns>
private static double getIntersection(LineP data, LineP fix)
{
Vector intersection = Vector.Interception(data.start, data.end, fix.start, fix.end);
if (intersection != null)
{
return(Vector.Abs(intersection - data.start) / Vector.Abs(data.end - data.start));
}
return(-1);
}
public static bool hasIntersections(List <Vector> list)
{
bool result = false;
int count = list.Count;
for (int i = 0; i < count; i++)
{
for (int j = 0; j < count; j++)
{
if (i != j && ((i + 1) % count) != j && ((j + 1) % count) != i && ((j + 1) % count) != ((i + 1) % count))
{
if (Vector.Interception(list[i % count], list[(i + 1) % count], list[j % count], list[(j + 1) % count]) != null)
{
result = true;
break;
}
}
}
}
return(result);
}
/// <summary>
/// Find the intersection of data with fix. Insersection point ip is output parameter
/// </summary>
/// <param name="data"></param>
/// <param name="fix"></param>
/// <param name="ip"></param>
/// <returns></returns>
private static bool getIntersection(LineP data, LineP fix, out IntersectionPoint ip)
{
ip = new IntersectionPoint();
bool res = false;
Vector intersectionV = Vector.Interception(data.start, data.end, fix.start, fix.end);
if (intersectionV != null)
{
double intersection = Vector.Abs(intersectionV - data.start) / Vector.Abs(data.end - data.start);
long timestmp = data.TimestamStart + (long)Math.Truncate((data.TimestamEnd - data.TimestamStart) * intersection);
double x = data.start.X + (data.end.X - data.start.X) * intersection;
double y = data.start.Y + (data.end.Y - data.start.Y) * intersection;
double z = data.start.Z + (data.end.Z - data.start.Z) * intersection;
ip.longitude = x;
ip.latitude = y;
ip.altitude = z;
ip.Timestamp = timestmp;
res = true;
return(res);
}
return(res);
}