ARCGIS jsapi 添加層級限制

一般情況下添加的地圖，是沒有層級限制的，根據滾輪的滑動而改變地圖的層級。按照下面的jsapi中按照下面的設定可以控製圖層的縮放層級。首先定義比例尺：
 

var lods = [               {"level" : 0, "resolution" : 0.703125, "scale" : 295497593.05875003},               {"level" : 1, "resolution" : 0.3515625, "scale" : 147748796.52937502},               {"level" : 2, "resolution" : 0.17578125, "scale" : 73874398.264687508},               {"level" : 3, "resolution" : 0.087890625, "scale" : 36937199.132343754},               {"level" : 4, "resolution" : 0.0439453125, "scale" : 18468599.566171877},               {"level" : 5, "resolution" : 0.02197265625, "scale" : 9234299.7830859385},               {"level" : 6, "resolution" : 0.010986328125, "scale" : 4617149.8915429693},               {"level" : 7, "resolution" : 0.0054931640625, "scale" : 2308574.9457714846}             ]; var lods = [              {"level" : 0, "resolution" : 0.703125, "scale" : 295497593.05875003},              {"level" : 1, "resolution" : 0.3515625, "scale" : 147748796.52937502},              {"level" : 2, "resolution" : 0.17578125, "scale" : 73874398.264687508},              {"level" : 3, "resolution" : 0.087890625, "scale" : 36937199.132343754},              {"level" : 4, "resolution" : 0.0439453125, "scale" : 18468599.566171877},              {"level" : 5, "resolution" : 0.02197265625, "scale" : 9234299.7830859385},              {"level" : 6, "resolution" : 0.010986328125, "scale" : 4617149.8915429693},              {"level" : 7, "resolution" : 0.0054931640625, "scale" : 2308574.9457714846}

            ];地圖執行個體化時添加：loads參數

[ new esri.Map("mapDiv", {"logo":false,"lods":lods}); new esri.Map("mapDiv", {"logo":false,"lods":lods});

具體效果如：