{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949106,-0.314957,0.000000,0.000000,0.175991,-0.530340,0.829317,0.000000,-0.260649,0.785453,0.561360,0.000000,-1664213.484673,5015019.076685,3560222.516213,1],    "boundingVolume": {    "region": [1.891139,0.595976,1.891276,0.596082,0.000000,11.631538]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1360249.b3dm"}}}