public static List <Waypoint> CreateWithFixedStep(Waypoint start, double length, double stepInMeter, double angleRad, Func <int, string> namingRule)
{
angleRad = Math.PI / 2 - angleRad;
var p = new List <Waypoint>();
var counter = 0;
var pos = 0.0;
var xy = WgsUtmConverter.LatLonToUTMXY(start.Location, 0);
while (pos < length)
{
var stepX = Math.Cos(angleRad) * pos;
var stepY = Math.Sin(angleRad) * pos;
var latLon = WgsUtmConverter.UTMXYToLatLon(xy.Shift(stepX, stepY), start.Location.Latitude < 0);
p.Add(new Waypoint(namingRule(counter), latLon));
counter++;
pos += stepInMeter;
}
return(p);
}
public static List <Waypoint> CreateWithFixedStep(List <Waypoint> keyPoints, double stepInMeter, Func <int, string> namingRule)
{
var p = new List <Waypoint>();
double r = 0.0;
int counter = 0;
for (int i = 1; i < keyPoints.Count; i++)
{
var p1 = keyPoints[i - 1];
var p2 = keyPoints[i];
var xy1 = WgsUtmConverter.LatLonToUTMXY(p1.Location, 0);
var xy2 = WgsUtmConverter.LatLonToUTMXY(p2.Location, xy1.Zone);
var dx = xy2.X - xy1.X;
var dy = xy2.Y - xy1.Y;
var a = Math.Atan(Math.Abs(dy / dx));
var len = Math.Sqrt(dx * dx + dy * dy);
var pos = r;
while (pos < len)
{
var stepX = dx > 0 ? Math.Cos(a) * pos : -Math.Cos(a) * pos;
var stepY = dy > 0 ? Math.Sin(a) * pos : -Math.Sin(a) * pos;
var latLon = WgsUtmConverter.UTMXYToLatLon(xy1.Shift(stepX, stepY), p1.Location.Latitude < 0);
p.Add(new Waypoint(namingRule(counter), latLon));
counter++;
pos += stepInMeter;
}
r = pos - len;
}
return(p);
}