{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897872,-0.440257,0.000000,0.000000,0.282641,-0.576425,0.766713,0.000000,-0.336614,0.686499,0.644523,0.000000,-2149963.064551,4384686.422105,4089025.572078,1],    "boundingVolume": {    "region": [2.026618,0.700365,2.026745,0.700434,0.000000,15.447169]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_852754.b3dm"}}}