static IPoints GenerateRandomDataset(int n, Boundary b)
{
b.Normalize();
// Random points
var list = new List<IP>();
for (var i = 0; i < n; i++)
{
var lat = (b.Miny + b.AbsY * Rand.NextDouble()).NormalizeLatitude();
var lon = (b.Minx + b.AbsX * Rand.NextDouble()).NormalizeLongitude();
list.Add(new P { I = Rand.Next(1000000000), C = 1, Y = lat, X = lon, T = i });
}
return new Points {Data = list};
}
public static Boundary GetBoundaryExtended(JsonGetMarkersReceive jsonReceive)
{
var deltas = GetDelta(jsonReceive);
var deltaX = deltas[0];
var deltaY = deltas[1];
// Grid with extended outer grid-area non-visible
var a = MathTool.FloorLatLon(jsonReceive.Viewport.Minx, deltaX) - deltaX * AlgoConfig.OuterGridExtend;
var b = MathTool.FloorLatLon(jsonReceive.Viewport.Miny, deltaY) - deltaY * AlgoConfig.OuterGridExtend;
var a2 = MathTool.FloorLatLon(jsonReceive.Viewport.Maxx, deltaX) + deltaX * (1 + AlgoConfig.OuterGridExtend);
var b2 = MathTool.FloorLatLon(jsonReceive.Viewport.Maxy, deltaY) + deltaY * (1 + AlgoConfig.OuterGridExtend);
// Latitude is special with Google Maps, they don't wrap around, then do constrain
b = MathTool.ConstrainLatitude(b);
b2 = MathTool.ConstrainLatitude(b2);
var grid = new Boundary { Minx = a, Miny = b, Maxx = a2, Maxy = b2 };
grid.Normalize();
return grid;
}
