{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950031,-0.312155,0.000000,0.000000,0.174068,-0.529770,0.830086,0.000000,-0.258572,0.786955,0.560216,0.000000,-1650943.966433,5024588.229312,3552949.903369,1],    "boundingVolume": {    "region": [1.888175,0.594581,1.888338,0.594712,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460898.b3dm"}}}