{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950275,-0.311412,0.000000,0.000000,0.173770,-0.530260,0.829836,0.000000,-0.257878,0.786917,0.560589,0.000000,-1646515.670080,5024354.749571,3555318.257235,1],    "boundingVolume": {    "region": [1.887425,0.595038,1.887524,0.595155,0.000000,8.750799]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453068.b3dm"}}}