{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950693,-0.310133,0.000000,0.000000,0.173021,-0.530387,0.829912,0.000000,-0.256843,0.787336,0.560476,0.000000,-1639903.337477,5027025.341814,3554604.041431,1],    "boundingVolume": {    "region": [1.886071,0.594904,1.886187,0.595018,0.000000,8.790017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/5_1449317.b3dm"}}}