{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950277,-0.311405,0.000000,0.000000,0.173778,-0.530297,0.829811,0.000000,-0.257865,0.786896,0.560626,0.000000,-1646428.701718,5024215.810970,3555553.285092,1],    "boundingVolume": {    "region": [1.887417,0.595083,1.887517,0.595200,0.000000,8.758932]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453609.b3dm"}}}