{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943930,-0.330147,0.000000,0.000000,0.184397,-0.527213,0.829484,0.000000,-0.273276,0.781328,0.561112,0.000000,-1744829.408365,4988679.065411,3558642.235891,1],    "boundingVolume": {    "region": [1.907208,0.595671,1.907303,0.595786,0.000000,8.789196]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1273019.b3dm"}}}