public async Task <typRoute> CreateRoute(double StartX, double StartY, double ReferencePointX, double ReferencePointY, string RouteGuid)
{
try
{
List <DPoint> Result = new List <DPoint>();
Route route = TDS.DAL.RoutesDB.GetRouteByGuid(RouteGuid);
DPoint ReferPoint = new DPoint(ReferencePointX, ReferencePointY);
shPath Path = await clsRoadRoutingWebApi.FindShortPath("0", StartX, StartY, ReferencePointX, ReferencePointY, false);
if (Path != null && Path.Points.Count > 0)
{
shPoint refPoint = Path.Points[Path.Points.Count - 1];
ReferPoint = new DPoint(refPoint.x, refPoint.y);
foreach (shPoint p in Path.Points)
{
Result.Add(new DPoint(p.x, p.y));
}
}
if (Result.Count == 0)
{
Result.Add(new DPoint(StartX, StartY));
}
else
{
if (Result[0].x != StartX || Result[0].y != StartY)
{
Result.Insert(0, new DPoint(StartX, StartY));
}
}
int leg = 0;
DPoint minP = null;
double mainDist = double.MaxValue;
int i = -1;
foreach (DPoint p in route.Points)
{
i++;
// double dist = MathEngine.CalcDistanceForCompare(ReferPoint.x, ReferPoint.y, p.x, p.y);
double dist = MathEngine.GreatCircleDistance(ReferPoint.x, ReferPoint.y, p.x, p.y);
if (dist < mainDist)
{
mainDist = dist;
minP = p;
leg = i;
}
}
if (mainDist != 0.0)
{
List <DPoint> R = route.Points.ToList <DPoint>().GetRange(leg, route.Points.Count() - leg);
Result.AddRange(R);
}
else
{
if (leg < route.Points.Count() - 1) // Not Last element
{
List <DPoint> R = route.Points.ToList <DPoint>().GetRange(leg + 1, route.Points.Count() - (leg + 1));
Result.AddRange(R);
}
}
Route routeResult = new Route();
routeResult.Points = Result;
typRoute tRoute = new typRoute(routeResult);
return(tRoute);
}
catch (Exception ex)
{
}
return(null);
}
