{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858250,-0.513231,0.000000,0.000000,0.262493,-0.438953,0.859313,0.000000,-0.440248,0.736204,0.513989,0.000000,-2810449.782431,4699769.028751,3259230.556214,1],    "boundingVolume": {    "region": [2.109660,0.539766,2.109824,0.539891,0.000000,9.692033]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/2_312509.b3dm"}}}