设置比例尺:lineLayer = new SuperMap.Layer.TiledDynamicRESTLayer('lineLayer', ConfigURL.dy500LayerServer, { transparent: true, cacheEnabled: true }, { scales: [1 / 20000000, 1 / 13000000, 1 / 9750000, 1 / 6500000, 1 / 3250000, 1 / 1625000, 1 / 812500, 1 / 406250, 1 / 203125, 1 / 100000, 1 / 50000, 1 / 25000, 1 / 10000, 1 / 5000]});