{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943984,-0.329993,0.000000,0.000000,0.184370,-0.527412,0.829364,0.000000,-0.273108,0.781258,0.561291,0.000000,-1743760.270675,4988236.612214,3559778.665073,1],    "boundingVolume": {    "region": [1.907044,0.595887,1.907140,0.596002,0.000000,8.696227]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1298210.b3dm"}}}