Пример #1
0
        void CanvasEnvelopeChanged(object sender, EventArgs e)
        {
            TileIdentify[] visibleTiles;
            LevelDef       suitableLevel;

            _tilesLocator.Compute(_canvas, out suitableLevel, out visibleTiles);
            if (visibleTiles == null || visibleTiles.Length == 0)
            {
                return;
            }
            //visibleTiles的顺序需要调整
            _tilesLocator.ComputeExtand(_canvas, suitableLevel, out visibleTiles);
            _tileCacheManager.WaitLoading(visibleTiles);
            _loadStack.Clear();
            _tileCacheManager.ClearPastTiles(visibleTiles);
            _currentLevel = suitableLevel;
            _tilesLocator.GetRasterRowColOfViewWnd(_canvas, out _bRowAtViewWnd, out _bColAtViewWnd, out _widthAtViewWnd, out _heightAtViewWnd);
            foreach (TileIdentify tile in visibleTiles)
            {
                if (!_tileCacheManager.IsExist(tile))
                {
                    _loadStack.Push(tile);
                    ReStartLoadWorker();
                }
            }
        }
Пример #2
0
        void CanvasEnvelopeChanged(object sender, EventArgs e)
        {
            TileIdentify[] visibleTiles;
            LevelDef       suitableLevel;

            _tilesLocator.Compute(_canvas, out suitableLevel, out visibleTiles);
            if (visibleTiles == null)
            {
                return;
            }
            _currentLevel = suitableLevel;
            _tilesLocator.GetRasterRowColOfViewWnd(_canvas, out _bRowAtViewWnd, out _bColAtViewWnd, out _widthAtViewWnd, out _heightAtViewWnd);
            foreach (TileIdentify tile in visibleTiles)
            {
                if (!_tileCacheManager.IsExist(tile))
                {
                    _loadStack.Push(tile);
                }
            }
        }