{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949101,-0.314971,0.000000,0.000000,0.175981,-0.530284,0.829355,0.000000,-0.260673,0.785485,0.561304,0.000000,-1664362.983957,5015225.299466,3559864.528127,1],    "boundingVolume": {    "region": [1.891153,0.595908,1.891291,0.596014,0.000000,11.857457]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1361334.b3dm"}}}