{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950028,-0.312166,0.000000,0.000000,0.174069,-0.529750,0.830099,0.000000,-0.258586,0.786964,0.560197,0.000000,-1651030.017327,5024645.873503,3552829.207563,1],    "boundingVolume": {    "region": [1.888187,0.594558,1.888350,0.594689,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460636.b3dm"}}}