{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949026,-0.315199,0.000000,0.000000,0.175982,-0.529859,0.829626,0.000000,-0.260948,0.785682,0.560901,0.000000,-1666117.933277,5016472.101460,3557303.185108,1],    "boundingVolume": {    "region": [1.891394,0.595421,1.891532,0.595527,0.000000,8.290728]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1071698.b3dm"}}}