{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950477,-0.310796,0.000000,0.000000,0.173458,-0.530469,0.829768,0.000000,-0.257347,0.787019,0.560690,0.000000,-1643125.543249,5025006.333903,3555961.386466,1],    "boundingVolume": {    "region": [1.886777,0.595160,1.886877,0.595277,0.000000,8.787647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1450201.b3dm"}}}