protected void drawOrRequestTile( DrawContext dc, Tile tile, double minDisplayDistanceSquared, double maxDisplayDistanceSquared) { if (!isTileVisible(dc, tile, minDisplayDistanceSquared, maxDisplayDistanceSquared)) return; if (tile.isTileInMemoryWithData()) { PlaceNameChunk placeNameChunk = tile.getDataChunk(); if (placeNameChunk.numEntries > 0) { Iterable<GeographicText> renderIter = placeNameChunk.makeIterable(dc); this.placeNameRenderer.render(dc, renderIter); } return; } // Tile's data isn't available, so request it if (!tile.getPlaceNameService() .isResourceAbsent(tile.getPlaceNameService().getTileNumber(tile.row, tile.column))) { this.requestTile(dc, tile); } }
protected boolean isTileInMemoryWithData() { Tile t = (Tile) WorldWind.getMemoryCache(Tile.class.getName()).getObject(this.getFileCachePath()); return !(t == null || t.getDataChunk() == null); }