public TileRecord(
Canvas layerCanvas,
TilePyramidDescriptor tilePyramidDescriptor,
TileId tileId)
{
tilePyramidCanvas = layerCanvas;
this.tilePyramidDescriptor = tilePyramidDescriptor;
this.tileId = tileId;
visible = false;
WillNeverBeAvailable = false;
}
public RasterTileSource(long logicalFinestLodWidth, long logicalFinestLodHeight, int tileWidth, int tileHeight, int logicalMinimumLevelOfDetail, RasterTileDownloader rasterTileDownloader, TileWrap tileWrap, int log2DuplicatePyramidCount, bool useGlobalMemoryCache = true)
{
if (logicalFinestLodWidth <= 0L)
{
throw new ArgumentOutOfRangeException(nameof(logicalFinestLodWidth));
}
if (logicalFinestLodHeight <= 0L)
{
throw new ArgumentOutOfRangeException(nameof(logicalFinestLodHeight));
}
if (tileWidth <= 0)
{
throw new ArgumentOutOfRangeException(nameof(tileWidth));
}
if (tileHeight <= 0)
{
throw new ArgumentOutOfRangeException(nameof(tileHeight));
}
if (rasterTileDownloader is null)
{
throw new ArgumentNullException(nameof(rasterTileDownloader));
}
if (tileWrap == TileWrap.None)
{
throw new ArgumentException("tileWrap must horizontal, vertical, or both.");
}
if (log2DuplicatePyramidCount < 1)
{
throw new ArgumentOutOfRangeException(nameof(log2DuplicatePyramidCount));
}
finestLodWidth = logicalFinestLodWidth << log2DuplicatePyramidCount;
finestLodHeight = logicalFinestLodHeight << log2DuplicatePyramidCount;
this.tileWidth = tileWidth;
this.tileHeight = tileHeight;
minimumLevelOfDetail = logicalMinimumLevelOfDetail + log2DuplicatePyramidCount;
var logicalTilePyramidDescriptor = new TilePyramidDescriptor(logicalFinestLodWidth, logicalFinestLodHeight, logicalMinimumLevelOfDetail, tileWidth, tileHeight);
tileIdTransform = tileId =>
{
var lod = tileId.LevelOfDetail - log2DuplicatePyramidCount;
var detailWidthInTiles = logicalTilePyramidDescriptor.GetLevelOfDetailWidthInTiles(lod);
var detailHeightInTiles = logicalTilePyramidDescriptor.GetLevelOfDetailHeightInTiles(lod);
return(new TileId(tileId.LevelOfDetail - log2DuplicatePyramidCount, tileWrap == TileWrap.Horizontal || tileWrap == TileWrap.Both ? tileId.X % detailWidthInTiles : tileId.X, tileWrap == TileWrap.Vertical || tileWrap == TileWrap.Both ? tileId.Y % detailHeightInTiles : tileId.Y));
};
transform = VectorMath.TranslationMatrix3D(tileWrap == TileWrap.Horizontal || tileWrap == TileWrap.Both ? -finestLodWidth / 2L : 0.0, tileWrap == TileWrap.Vertical || tileWrap == TileWrap.Both ? -finestLodHeight / 2L : 0.0, 0.0) * VectorMath.ScalingMatrix3D(1 << log2DuplicatePyramidCount, 1 << log2DuplicatePyramidCount, 1.0);
ConstructCommon(rasterTileDownloader, useGlobalMemoryCache);
}
public TilePyramid(
TilePyramidDescriptor tilePyramidDescriptor,
TileSource tileSource,
Canvas parentCanvas)
{
if (tilePyramidDescriptor is null)
{
throw new ArgumentNullException(nameof(tilePyramidDescriptor));
}
if (tileSource is null)
{
throw new ArgumentNullException(nameof(tileSource));
}
if (parentCanvas is null)
{
throw new ArgumentNullException(nameof(parentCanvas));
}
if (tilePyramidDescriptor.FinestLevelWidth != tileSource.FinestLodWidth || tilePyramidDescriptor.FinestLevelHeight != tileSource.FinestLodHeight)
{
throw new ArgumentException("Tile pyramid descriptor and tile source sizes must match.");
}
TilePyramidDescriptor = tilePyramidDescriptor;
this.parentCanvas = parentCanvas;
TileSource = tileSource;
TileSource.NewTilesAvailable += new EventHandler(TileSource_NewTilesAvailable);
var canvas = new Canvas
{
HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Stretch,
UseLayoutRounding = false,
IsHitTestVisible = false,
Tag = "TilePyramidCanvas"
};
tilePyramidCanvas = canvas;
Canvas.SetLeft(tilePyramidCanvas, 0.0);
Canvas.SetTop(tilePyramidCanvas, 0.0);
this.parentCanvas.Children.Add(tilePyramidCanvas);
ChooseLevelOfDetailSettings = DownloadFinestNLevelsOfDetailNeeded(3, true, true);
levelOfDetailSettings = new List <LevelOfDetailSettings?>(tileSource.MaximumLevelOfDetail);
for (var index = 0; index <= tileSource.MaximumLevelOfDetail; ++index)
{
levelOfDetailSettings.Add(new LevelOfDetailSettings?(new LevelOfDetailSettings(false, 0.0, new int?())));
}
coverageMap = new TilePyramidCoverageMap(tileSource.MinimumLevelOfDetail, tileSource.MaximumLevelOfDetail);
}
public RasterTileCache(TilePyramidDescriptor tilePyramidDescriptor, RasterTileDownloader rasterTileDownloader, TransformTileId transformTileId, bool useGlobalMemoryCache)
{
this.tilePyramidDescriptor = tilePyramidDescriptor;
this.rasterTileDownloader = rasterTileDownloader;
this.transformTileId = transformTileId;
this.useGlobalMemoryCache = useGlobalMemoryCache;
rasterTileCacheId = nextRasterTileCacheId++;
if (this.transformTileId is null)
{
this.transformTileId = tileId => tileId;
}
if (useGlobalMemoryCache)
{
return;
}
rasterTileCacheValues = new Dictionary <TileId, RasterTileCacheValue>();
relevantTransformedTileIds = new HashSet <TileId>();
rasterTileCacheValuesToRemove = new List <TileId>();
}
public void Initialize(
TilePyramidDescriptor tilePyramid,
ref Matrix3D renderableToViewportTransform,
Point2D viewportSize,
TileId visibleTileId)
{
VisibleTileId = visibleTileId;
viewportCenter = 0.5 * viewportSize;
bucketRadiusInterval = 0.5 * Math.Sqrt(viewportSize.X * viewportSize.X + viewportSize.Y * viewportSize.Y) / 5.0 - 1.0;
lod = visibleTileId.LevelOfDetail;
tileWidthAtFinestLod = tilePyramid.TileWidth * (1 << tilePyramid.FinestLevelOfDetail - lod);
tileHeightAtFinestLod = tilePyramid.TileHeight * (1 << tilePyramid.FinestLevelOfDetail - lod);
vTL0 = VectorMath.Transform(renderableToViewportTransform, new Point4D(tileWidthAtFinestLod * visibleTileId.X, tileHeightAtFinestLod * visibleTileId.Y, 0.0, 1.0));
var point4D1 = VectorMath.Transform(renderableToViewportTransform, new Point4D(tileWidthAtFinestLod * (visibleTileId.X + 1L), tileHeightAtFinestLod * visibleTileId.Y, 0.0, 1.0));
var point4D2 = VectorMath.Transform(renderableToViewportTransform, new Point4D(tileWidthAtFinestLod * visibleTileId.X, tileHeightAtFinestLod * (visibleTileId.Y + 1L), 0.0, 1.0));
vR = point4D1 - vTL0;
vD = point4D2 - vTL0;
}
private void ConstructCommon(RasterTileDownloader rasterTileDownloader, bool useGlobalMemoryCache)
{
tilePyramidDescriptor = new TilePyramidDescriptor(finestLodWidth, finestLodHeight, minimumLevelOfDetail, tileWidth, tileHeight);
maximumLevelOfDetail = tilePyramidDescriptor.FinestLevelOfDetail;
if (minimumLevelOfDetail < 0 || minimumLevelOfDetail > maximumLevelOfDetail)
{
throw new ArgumentException("minimumLevelOfDetail must be in range [0, finest level of detail].");
}
rasterTileImageCache = new RasterTileCache(tilePyramidDescriptor, rasterTileDownloader, tileIdTransform, useGlobalMemoryCache);
rasterTileImageCache.NewTilesAvailable += (sender, e) =>
{
if (NewTilesAvailable is null)
{
return;
}
NewTilesAvailable(this, EventArgs.Empty);
};
TileFadeInDuration = new TimeSpan?(TimeSpan.FromMilliseconds(300.0));
}