{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858228,-0.513269,0.000000,0.000000,0.263037,-0.439819,0.858703,0.000000,-0.439965,0.735658,0.515013,0.000000,-2808652.100500,4696296.852099,3265734.825719,1],    "boundingVolume": {    "region": [2.109704,0.540960,2.109868,0.541086,0.000000,74.128233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_465936.b3dm"}}}