{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949236,-0.314563,0.000000,0.000000,0.175922,-0.530869,0.828993,0.000000,-0.260221,0.785252,0.561841,0.000000,-1661482.112774,5013742.381729,3563274.508536,1],    "boundingVolume": {    "region": [1.890742,0.596598,1.890844,0.596620,0.000000,11.086840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/9_1420152.b3dm"}}}