/// <summary>
/// todo use threads and threadData
/// </summary>
/// <param name="points"></param>
/// <param name="input"></param>
public GridCluster(IList<P> points, JsonGetMarkersReceive input)
: base(points)
{
this._jsonReceive = input;
double[] deltas = GetDelta(GmcSettings.Get.Gridx, GmcSettings.Get.Gridy, input.Zoomlevel);
DeltaX = deltas[0];
DeltaY = deltas[1];
Grid = GetBoundaryExtended(input);
}
public static Boundary GetBoundaryExtended(JsonGetMarkersReceive input)
{
var deltas = GetDelta(GmcSettings.Get.Gridx, GmcSettings.Get.Gridy, input.Zoomlevel);
var deltaX = deltas[0];
var deltaY = deltas[1];
// Grid with extended outer grid-area non-visible
var a = MathTool.FloorLatLon(input.Viewport.Minx, deltaX) - deltaX * GmcSettings.Get.OuterGridExtend;
var b = MathTool.FloorLatLon(input.Viewport.Miny, deltaY) - deltaY * GmcSettings.Get.OuterGridExtend;
var a2 = MathTool.FloorLatLon(input.Viewport.Maxx, deltaX) + deltaX * (1 + GmcSettings.Get.OuterGridExtend);
var b2 = MathTool.FloorLatLon(input.Viewport.Maxy, deltaY) + deltaY * (1 + GmcSettings.Get.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;
}