protected virtual void UpdateTiles(bool clearTiles)
{
if (Tiles.Count > 0)
{
TileImageLoader.CancelLoadTiles(this);
}
if (clearTiles)
{
Tiles.Clear();
}
SelectTiles();
Children.Clear();
if (Tiles.Count > 0)
{
foreach (var tile in Tiles)
{
Children.Add(tile.Image);
}
var pendingTiles = Tiles.Where(t => t.Pending);
if (LoadTilesDescending)
{
pendingTiles = pendingTiles.OrderByDescending(t => t.ZoomLevel); // higher zoom levels first
}
TileImageLoader.BeginLoadTiles(this, pendingTiles);
}
}
private void UpdateTiles(WmtsTileMatrixSet tileMatrixSet)
{
var tiles = new List <Tile>();
foreach (var layer in ChildLayers)
{
layer.UpdateTiles();
tiles.AddRange(layer.Tiles);
}
var tileSource = TileSource as WmtsTileSource;
var sourceName = SourceName;
if (tileSource != null && tileMatrixSet != null)
{
tileSource.TileMatrixSet = tileMatrixSet;
if (sourceName != null)
{
sourceName += "/" + tileMatrixSet.Identifier
.Replace(':', '_')
.Replace(';', '_')
.Replace(',', '_')
.Replace('/', '_')
.Replace('\\', '_');
}
}
TileImageLoader.LoadTilesAsync(tiles, tileSource, sourceName);
}
private void UpdateTiles(WmtsTileMatrixSet tileMatrixSet)
{
var tiles = new List <Tile>();
foreach (var layer in Children.Cast <WmtsTileMatrixLayer>())
{
layer.UpdateTiles();
tiles.AddRange(layer.Tiles);
}
var tileSource = TileSource as WmtsTileSource;
var sourceName = SourceName;
if (tileSource != null && tileMatrixSet != null)
{
tileSource.TileMatrixSet = tileMatrixSet;
if (sourceName != null)
{
sourceName += "/" + tileMatrixSet.Identifier;
}
}
TileImageLoader.LoadTilesAsync(tiles, TileSource, sourceName);
}
protected virtual void UpdateTiles(bool clearTiles)
{
if (Tiles.Count > 0)
{
TileImageLoader.CancelLoadTiles(this);
}
if (clearTiles)
{
Tiles.Clear();
}
SelectTiles();
Children.Clear();
if (Tiles.Count > 0)
{
foreach (var tile in Tiles)
{
Children.Add(tile.Image);
}
TileImageLoader.BeginLoadTiles(this, Tiles.Where(t => t.Pending).OrderByDescending(t => t.ZoomLevel));
}
}
private void UpdateTiles()
{
var newTiles = new List <Tile>();
if (parentMap != null && TileGrid != null && TileSource != null)
{
var maxZoomLevel = Math.Min(TileGrid.ZoomLevel, MaxZoomLevel);
var minZoomLevel = MinZoomLevel;
if (minZoomLevel < maxZoomLevel && parentMap.MapLayer != this)
{
minZoomLevel = maxZoomLevel; // do not load lower level tiles if this is note a "base" layer
}
for (var z = minZoomLevel; z <= maxZoomLevel; z++)
{
var tileSize = 1 << (TileGrid.ZoomLevel - z);
var x1 = (int)Math.Floor((double)TileGrid.XMin / tileSize); // may be negative
var x2 = TileGrid.XMax / tileSize;
var y1 = Math.Max(TileGrid.YMin / tileSize, 0);
var y2 = Math.Min(TileGrid.YMax / tileSize, (1 << z) - 1);
for (var y = y1; y <= y2; y++)
{
for (var x = x1; x <= x2; x++)
{
var tile = Tiles.FirstOrDefault(t => t.ZoomLevel == z && t.X == x && t.Y == y);
if (tile == null)
{
tile = new Tile(z, x, y);
var equivalentTile = Tiles.FirstOrDefault(
t => t.ZoomLevel == z && t.XIndex == tile.XIndex && t.Y == y && t.Image.Source != null);
if (equivalentTile != null)
{
tile.SetImage(equivalentTile.Image.Source, false); // no fade-in animation
}
}
newTiles.Add(tile);
}
}
}
}
Tiles = newTiles;
Children.Clear();
foreach (var tile in Tiles)
{
Children.Add(tile.Image);
}
TileImageLoader.LoadTilesAsync(this);
}
private void UpdateTiles()
{
var newTiles = new List <Tile>();
if (parentMap != null && TileGrid != null && TileSource != null)
{
var maxZoomLevel = Math.Min(TileGrid.ZoomLevel, MaxZoomLevel);
var minZoomLevel = parentMap.MapLayer == this ? MinZoomLevel : maxZoomLevel; // load background tiles only if this is the base layer
for (var z = minZoomLevel; z <= maxZoomLevel; z++)
{
var tileSize = 1 << (TileGrid.ZoomLevel - z);
var x1 = (int)Math.Floor((double)TileGrid.XMin / tileSize); // may be negative
var x2 = TileGrid.XMax / tileSize;
var y1 = Math.Max(TileGrid.YMin / tileSize, 0);
var y2 = Math.Min(TileGrid.YMax / tileSize, (1 << z) - 1);
for (var y = y1; y <= y2; y++)
{
for (var x = x1; x <= x2; x++)
{
var tile = Tiles.FirstOrDefault(t => t.ZoomLevel == z && t.X == x && t.Y == y);
if (tile == null)
{
tile = new Tile(z, x, y);
var equivalentTile = Tiles.FirstOrDefault(
t => t.ZoomLevel == z && t.XIndex == tile.XIndex && t.Y == y && t.Image.Source != null);
if (equivalentTile != null)
{
tile.SetImage(equivalentTile.Image.Source, false); // do not animate to avoid flicker when crossing 180° longitude
}
}
newTiles.Add(tile);
}
}
}
}
Tiles = newTiles;
Children.Clear();
foreach (var tile in Tiles)
{
Children.Add(tile.Image);
}
var task = TileImageLoader.LoadTilesAsync(this);
}
private void UpdateTiles()
{
var newTiles = new List <Tile>();
if (ParentMap != null && TileMatrix != null && TileSource != null)
{
var maxZoomLevel = Math.Min(TileMatrix.ZoomLevel, MaxZoomLevel);
if (maxZoomLevel >= MinZoomLevel)
{
var minZoomLevel = maxZoomLevel;
if (this == ParentMap.MapLayer) // load background tiles
{
minZoomLevel = Math.Max(TileMatrix.ZoomLevel - MaxBackgroundLevels, MinZoomLevel);
}
for (var z = minZoomLevel; z <= maxZoomLevel; z++)
{
var tileSize = 1 << (TileMatrix.ZoomLevel - z);
var x1 = (int)Math.Floor((double)TileMatrix.XMin / tileSize); // may be negative
var x2 = TileMatrix.XMax / tileSize;
var y1 = Math.Max(TileMatrix.YMin / tileSize, 0);
var y2 = Math.Min(TileMatrix.YMax / tileSize, (1 << z) - 1);
for (var y = y1; y <= y2; y++)
{
for (var x = x1; x <= x2; x++)
{
var tile = Tiles.FirstOrDefault(t => t.ZoomLevel == z && t.X == x && t.Y == y);
if (tile == null)
{
tile = new Tile(z, x, y);
var equivalentTile = Tiles.FirstOrDefault(
t => t.ZoomLevel == z && t.XIndex == tile.XIndex && t.Y == y && t.Image.Source != null);
if (equivalentTile != null)
{
tile.SetImage(equivalentTile.Image.Source, false); // no fade-in animation
}
}
newTiles.Add(tile);
}
}
}
}
}
Tiles = newTiles;
Children.Clear();
foreach (var tile in Tiles)
{
Children.Add(tile.Image);
}
TileImageLoader.LoadTilesAsync(Tiles, TileSource, SourceName);
}
protected virtual void LoadTiles(IEnumerable <Tile> tiles, string cacheName)
{
TileImageLoader.LoadTiles(tiles, TileSource, cacheName);
}
public GoogleMapsTileLayer(TileImageLoader tileImageLoader)
: base(tileImageLoader)
{
tileImageLoader.HttpUserAgent = "Mozilla/5.0";
}
public UCSMapTilesLayer(TileImageLoader tileImageLoader)
: base(tileImageLoader)
{
tileImageLoader.HttpUserAgent = "Mozilla/5.0";
}
