{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949253,-0.314514,0.000000,0.000000,0.175891,-0.530866,0.829001,0.000000,-0.260183,0.785273,0.561829,0.000000,-1661236.582456,5013879.102518,3563197.129469,1],    "boundingVolume": {    "region": [1.890690,0.596584,1.890791,0.596605,0.000000,11.140338]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/9_1418877.b3dm"}}}