Ejemplo n.º 1
0
        MapTile CheckTileInMemory(int m, int n, int level)
        {
            string key	= string.Format(ShortName + "{0:00}{1:0000}{2:0000}", level, m, n);
            string path = @"cache\" + Name + @"\" + key + ".jpg";

            if (!RamCache.ContainsKey(key)) {
                MapTile ct = new MapTile {
                        Path		= path,
                        Url			= GenerateUrl(m, n, level),
                        LruIndex	= 0,
                        Tile		= EmptyTile,
                        X			= m,
                        Y			= n,
                        Zoom		= level
                    };

                RamCache.Add(key, ct);

                cacheQueue.Enqueue(ct);
            }

            if (tileStreamingTask == null) {
                tileStreamingTask = new Task(TileStreamingThreadFunc);
                tileStreamingTask.Start();
            }

            RamCache[key].LruIndex	= level;
            RamCache[key].Time		= 0.0f;

            return RamCache[key];
        }
Ejemplo n.º 2
0
        public bool DownloadTile(MapTile tile)
        {
            try {
                var request = (HttpWebRequest) WebRequest.Create(tile.Url);

                request.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.CacheIfAvailable);
                request.Timeout				= TimeoutMs;
                request.UserAgent			= UserAgent;
                request.ReadWriteTimeout	= TimeoutMs * 6;
                request.Accept				= requestAccept;
                request.Referer				= RefererUrl;

                HttpWebResponse response = (HttpWebResponse) request.GetResponse();

                if (!Directory.Exists(@"cache\" + Name)) {
                    Directory.CreateDirectory(@"cache\" + Name);
                }

                System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(response.GetResponseStream());
                bitmap.Save(tile.Path, System.Drawing.Imaging.ImageFormat.Jpeg);
                return true;
            } catch (Exception e) {
            #if DEBUG
                Log.Warning(e.Message);
            #endif
                return false;
            }
        }