{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898753,-0.438455,0.000000,0.000000,0.283241,-0.580594,0.763338,0.000000,-0.333749,0.684125,0.648525,0.000000,-2131697.971810,4369599.234440,4114487.198270,1],    "boundingVolume": {    "region": [2.024592,0.705586,2.024757,0.705705,0.000000,8.575982]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1832631.b3dm"}}}