{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.894769,-0.446529,0.000000,0.000000,0.284529,-0.570148,0.770697,0.000000,-0.343198,0.687711,0.639742,0.000000,-2191968.054287,4392333.053642,4058608.499664,1],    "boundingVolume": {    "region": [2.033612,0.694100,2.033746,0.694224,0.000000,44.410574]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_983569.b3dm"}}}