var viewer = new Cesium.Viewer('cesiumContainer', {
animation: false,
baseLayerPicker: false,
geocoder: true,
timeline: false,
sceneModePicker: true,
navigationHelpButton: false,
infoBox: true
});

/*
viewer.imageryLayers.addImageryProvider(new Cesium.WebMapTileServiceImageryProvider({
url: "http://t0.tianditu.com/vec_w/wmts?service=wmts&request=GetTile&version=1.0.0&LAYER=vec&tileMatrixSet=w&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}&style=default&format=tiles",
layer: "tdtVecBasicLayer",
style: "default",
format: "image/jpeg",
tileMatrixSetID: "GoogleMapsCompatible",
show: false
}));

viewer.imageryLayers.addImageryProvider(new Cesium.WebMapTileServiceImageryProvider({
url: "http://t0.tianditu.com/cva_w/wmts?service=wmts&request=GetTile&version=1.0.0&LAYER=cva&tileMatrixSet=w&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}&style=default&format=tiles",
layer: "tdtAnnoLayer",
style: "default",
format: "image/jpeg",
tileMatrixSetID: "GoogleMapsCompatible",
show: false
}));
*/

viewer.imageryLayers.addImageryProvider(new Cesium.WebMapTileServiceImageryProvider({
url: "http://t0.tianditu.com/img_w/wmts?service=wmts&request=GetTile&version=1.0.0&LAYER=img&tileMatrixSet=w&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}&style=default&format=tiles",
layer: "tdtImgBasicLayer",
style: "default",
format: "image/jpeg",
tileMatrixSetID: "GoogleMapsCompatible",
show: false
}));

viewer.imageryLayers.addImageryProvider(new Cesium.WebMapTileServiceImageryProvider({
url: "http://t0.tianditu.com/cia_w/wmts?service=wmts&request=GetTile&version=1.0.0&LAYER=cia&tileMatrixSet=w&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}&style=default&format=tiles",
layer: "tdtImgAnnoLayer",
style: "default",
format: "image/jpeg",
tileMatrixSetID: "GoogleMapsCompatible",
show: false
}));