{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949479,-0.313831,0.000000,0.000000,0.175420,-0.530724,0.829192,0.000000,-0.259679,0.785642,0.561545,0.000000,-1658016.235439,5016231.999495,3561397.133181,1],    "boundingVolume": {    "region": [1.889973,0.596211,1.890071,0.596293,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444018.b3dm"}}}