public Changes Apply(UInt16 width, UInt16 height, Double zoomLevel, GeoPoint center, Boolean recreate)
{
var previousTiles = new List <GeoTileWithObjects <T> >(GetTiles());
var tileWidth = 360.0 / (1 << (Byte)zoomLevel);
var tileHeight = 180.0 / (1 << (Byte)zoomLevel);
Width = width;
Height = height;
Matrix = new GeoTileWithObjects <T> [Height * 2 + 1, Width * 2 + 1];
Matrix[Height, Width] = new GeoTileWithObjects <T>(center, (Byte)zoomLevel);
var centerPoint = Matrix[Height, Width].Tile.Point;
for (var i = -Width; i <= Width; i++)
{
for (var j = -Height; j <= Height; j++)
{
if ((i == 0) && (j == 0))
{
continue;
}
Matrix[j + Height, i + Width] = new GeoTileWithObjects <T>(new GeoTile(new GeoPoint(centerPoint.Latitude + tileHeight * j, centerPoint.Longitude + tileWidth * i), (Byte)zoomLevel));
}
}
var newTiles = new List <GeoTileWithObjects <T> >(GetTiles());
var notChangedTiles = recreate ? new List <GeoTileWithObjects <T> >() : previousTiles.Intersect(newTiles).ToList();
foreach (var notChangedTile in notChangedTiles)
{
var previousTile = previousTiles[previousTiles.IndexOf(notChangedTile)];
var newTile = newTiles[newTiles.IndexOf(notChangedTile)];
foreach (var obj in previousTile.Objects)
{
newTile.Objects.Add(obj);
}
}
var removedTiles = previousTiles.Except(notChangedTiles).ToList();
var addedTiles = GetTiles().Except(notChangedTiles).ToList();
return(new Changes(removedTiles, addedTiles, notChangedTiles));
}
public TileWithNodesData(GeoTileWithObjects <Object> tile, IEnumerable <NodeData> nodesData)
{
Tile = tile; NodesData = nodesData;
}
