{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857818,-0.513954,0.000000,0.000000,0.263093,-0.439118,0.859044,0.000000,-0.440729,0.735601,0.514440,0.000000,-2813521.445860,4695927.660483,3262096.753961,1],    "boundingVolume": {    "region": [2.110502,0.540292,2.110666,0.540418,0.000000,37.453941]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/7_388410.b3dm"}}}