{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858459,-0.512883,0.000000,0.000000,0.262642,-0.439608,0.858932,0.000000,-0.439752,0.736053,0.514630,0.000000,-2807290.544101,4698815.363303,3263298.314819,1],    "boundingVolume": {    "region": [2.109254,0.540513,2.109418,0.540638,0.000000,23.639566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_269466.b3dm"}}}