{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949643,-0.313335,0.000000,0.000000,0.175067,-0.530586,0.829355,0.000000,-0.259319,0.785934,0.561304,0.000000,-1655717.885287,5018087.279400,3559862.754538,1],    "boundingVolume": {    "region": [1.889449,0.595920,1.889548,0.596001,0.000000,10.817835]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1361345.b3dm"}}}