{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949281,-0.314429,0.000000,0.000000,0.175699,-0.530447,0.829310,0.000000,-0.260210,0.785591,0.561370,0.000000,-1661411.298679,5015903.765331,3560284.562096,1],    "boundingVolume": {    "region": [1.890583,0.595987,1.890720,0.596094,0.000000,8.475046]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1360084.b3dm"}}}