{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949209,-0.314645,0.000000,0.000000,0.175964,-0.530841,0.829002,0.000000,-0.260291,0.785238,0.561827,0.000000,-1661931.558425,5013653.889512,3563189.994233,1],    "boundingVolume": {    "region": [1.890828,0.596582,1.890930,0.596604,0.000000,8.911051]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/9_1418728.b3dm"}}}