{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857792,-0.513998,0.000000,0.000000,0.263139,-0.439143,0.859018,0.000000,-0.440753,0.735556,0.514485,0.000000,-2813674.274811,4695636.208734,3262382.542695,1],    "boundingVolume": {    "region": [2.110553,0.540345,2.110717,0.540470,0.000000,46.717700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/7_391945.b3dm"}}}