{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857925,-0.513776,0.000000,0.000000,0.263082,-0.439306,0.858952,0.000000,-0.440528,0.735613,0.514596,0.000000,-2812242.217385,4696003.625770,3263083.665443,1],    "boundingVolume": {    "region": [2.110294,0.540474,2.110458,0.540599,0.000000,30.492566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_401307.b3dm"}}}