{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949022,-0.315209,0.000000,0.000000,0.176128,-0.530279,0.829327,0.000000,-0.260862,0.785393,0.561345,0.000000,-1665568.504267,5014637.838827,3560126.505806,1],    "boundingVolume": {    "region": [1.891405,0.595957,1.891542,0.596064,0.000000,13.419225]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1068769.b3dm"}}}