{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948824,-0.315804,0.000000,0.000000,0.176340,-0.529809,0.829582,0.000000,-0.261435,0.785473,0.560966,0.000000,-1669226.414940,5015142.334835,3557718.075594,1],    "boundingVolume": {    "region": [1.892052,0.595441,1.892148,0.595664,0.000000,8.815559]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1181640.b3dm"}}}