public static ToastTools GetTileForLevelPoint(int targetLevel, double lat, double lng)
{
int level = 0;
ToastTools tile = root;
while (level < targetLevel + 1)
{
//iterate children
for (int i = 0; i < 4; i++)
{
ToastTools child = tile.GetChild(i);
if (child != null)
{
if (child.IsPointInTile(lat, lng))
{
tile = child;
if (child.Level == targetLevel)
{
return(tile);
}
break;
}
}
}
level++;
}
return(null);
}
public ToastTools GetChild(int id)
{
if (children[id] == null)
{
int x1 = 0;
int y1 = 0;
switch (id)
{
case 0:
y1 = 0;
x1 = 0;
break;
case 1:
y1 = 0;
x1 = 1;
break;
case 2:
y1 = 1;
x1 = 0;
break;
case 3:
y1 = 1;
x1 = 1;
break;
}
children[id] = new ToastTools(this, Level + 1, X * 2 + x1, Y * 2 + y1);
}
return(children[id]);
}
public ToastTools(ToastTools parent, int level, int x, int y)
{
Parent = parent;
X = x;
Y = y;
Level = level;
InitializeGrids();
TopLeft = new Vector3d(Vector3d.Scale(bounds[0, 0].Position, 1));
BottomRight = new Vector3d(Vector3d.Scale(bounds[2, 2].Position, 1));
TopRight = new Vector3d(Vector3d.Scale(bounds[2, 0].Position, 1));
BottomLeft = new Vector3d(Vector3d.Scale(bounds[0, 2].Position, 1));
}
public ToastTools(ToastTools parent, int level, int x, int y)
{
Parent = parent;
X = x;
Y = y;
Level = level;
InitializeGrids();
TopLeft = new Vector3d(Vector3d.Scale(bounds[0, 0].Position, 1));
BottomRight = new Vector3d(Vector3d.Scale(bounds[2, 2].Position, 1));
TopRight = new Vector3d(Vector3d.Scale(bounds[2, 0].Position, 1));
BottomLeft = new Vector3d(Vector3d.Scale(bounds[0, 2].Position, 1));
}
public ToastTools GetChild(int id)
{
if (children[id] == null)
{
int x1 =0;
int y1 = 0;
switch(id)
{
case 0:
y1=0;
x1=0;
break;
case 1:
y1=0;
x1=1;
break;
case 2:
y1=1;
x1=0;
break;
case 3:
y1=1;
x1=1;
break;
}
children[id] = new ToastTools(this, Level + 1, X * 2 + x1, Y * 2 + y1);
}
return children[id];
}