{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858221,-0.513280,0.000000,0.000000,0.262571,-0.439028,0.859250,0.000000,-0.440258,0.736125,0.514094,0.000000,-2810511.410048,4699266.499852,3259897.452158,1],    "boundingVolume": {    "region": [2.109717,0.539889,2.109881,0.540014,0.000000,83.499081]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/3_128708.b3dm"}}}