{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858233,-0.513260,0.000000,0.000000,0.263027,-0.439813,0.858709,0.000000,-0.439960,0.735667,0.515004,0.000000,-2808619.931104,4696358.699362,3265673.961873,1],    "boundingVolume": {    "region": [2.109693,0.540949,2.109857,0.541074,0.000000,74.128233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_464493.b3dm"}}}