{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948804,-0.315866,0.000000,0.000000,0.176083,-0.528922,0.830203,0.000000,-0.261683,0.786050,0.560043,0.000000,-1670808.206282,5018803.116311,3551847.948948,1],    "boundingVolume": {    "region": [1.892118,0.594326,1.892214,0.594549,0.000000,8.773131]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1212822.b3dm"}}}