{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858459,-0.512881,0.000000,0.000000,0.262643,-0.439611,0.858930,0.000000,-0.439750,0.736053,0.514632,0.000000,-2807276.575188,4698811.699580,3263315.491287,1],    "boundingVolume": {    "region": [2.109252,0.540516,2.109416,0.540641,0.000000,23.639566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_269487.b3dm"}}}