{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858201,-0.513313,0.000000,0.000000,0.262518,-0.438900,0.859332,0.000000,-0.440328,0.736179,0.513957,0.000000,-2810959.612237,4699606.914833,3259026.021882,1],    "boundingVolume": {    "region": [2.109755,0.539730,2.109919,0.539853,0.000000,52.491300]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/2.b3dm"}}}