{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950693,-0.310133,0.000000,0.000000,0.173277,-0.531171,0.829356,0.000000,-0.256669,0.786804,0.561302,0.000000,-1638802.202067,5023646.624813,3559849.304028,1],    "boundingVolume": {    "region": [1.886071,0.595901,1.886187,0.596015,0.000000,8.696815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/14_1426250.b3dm"}}}