示例#1
0
        public static Tile GetCachedTile(int level, int x, int y, IImageSet dataset, Tile parent)
        {
            if (level < dataset.BaseLevel)
            {
                return(null);
            }

            Tile retTile = null;
            long tileKey = ImageSetHelper.GetTileKey(dataset, level, x, y);

            try
            {
                if (!tiles.ContainsKey(tileKey))
                {
                    return(null);
                }
                else
                {
                    retTile = tiles[tileKey];
                }
            }
            catch
            {
                if (Earth3d.Logging)
                {
                    Earth3d.WriteLogMessage("Tile Initialize: Exception");
                }
            }



            return(retTile);
        }
示例#2
0
        public static Tile GetTileNow(int level, int x, int y, IImageSet dataset, Tile parent)
        {
            if (level < dataset.BaseLevel)
            {
                return(null);
            }

            Tile retTile = null;
            long tileKey = ImageSetHelper.GetTileKey(dataset, level, x, y);

            try
            {
                if (!tiles.ContainsKey(tileKey))
                {
                    retTile = ImageSetHelper.GetNewTile(dataset, level, x, y, parent);
                    tileMutex.WaitOne();
                    tiles.Add(tileKey, retTile);
                    tileMutex.ReleaseMutex();
                }
                else
                {
                    retTile = tiles[tileKey];
                }
            }
            catch
            {
                if (Earth3d.Logging)
                {
                    Earth3d.WriteLogMessage("GetTile: Exception");
                }
            }
            finally
            {
                //todoperf get rid of this write for GC
                retTile.AccessCount = AccessID++;
            }

            // Create if not ready to render

            if (!retTile.ReadyToRender)
            {
                TileCache.GetTileFromWeb(retTile, false);
                retTile.CreateGeometry(Earth3d.MainWindow.RenderContext11, false);
            }


            return(retTile);
        }
示例#3
0
        public static Tile GetTile(int level, int x, int y, IImageSet dataset, Tile parent)
        {
            if (level < dataset.BaseLevel)
            {
                return(null);
            }

            Tile retTile = null;
            long tileKey = ImageSetHelper.GetTileKey(dataset, level, x, y);

            try
            {
                if (!tiles.ContainsKey(tileKey))
                {
                    retTile = ImageSetHelper.GetNewTile(dataset, level, x, y, parent);
                    tileMutex.WaitOne();
                    tiles.Add(tileKey, retTile);
                    tileMutex.ReleaseMutex();
                }
                else
                {
                    retTile = tiles[tileKey];
                }
            }
            catch
            {
                if (Earth3d.Logging)
                {
                    Earth3d.WriteLogMessage("GetTile: Exception");
                }
            }
            finally
            {
                //todoperf get rid of this write for GC
                retTile.AccessCount = AccessID++;
            }


            return(retTile);
        }