{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858825,-0.512270,0.000000,0.000000,0.262254,-0.439671,0.859018,0.000000,-0.439271,0.736442,0.514484,0.000000,-2804217.585636,4701294.961623,3262375.196639,1],    "boundingVolume": {    "region": [2.108540,0.540343,2.108704,0.540469,0.000000,14.688166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/7_253824.b3dm"}}}