{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949288,-0.314407,0.000000,0.000000,0.175647,-0.530328,0.829397,0.000000,-0.260220,0.785681,0.561241,0.000000,-1661472.360991,5016470.614452,3559462.859160,1],    "boundingVolume": {    "region": [1.890560,0.595831,1.890697,0.595938,0.000000,8.680512]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1361882.b3dm"}}}