{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950488,-0.310763,0.000000,0.000000,0.173439,-0.530475,0.829768,0.000000,-0.257319,0.787028,0.560690,0.000000,-1642948.653332,5025062.384371,3555963.895223,1],    "boundingVolume": {    "region": [1.886742,0.595161,1.886842,0.595278,0.000000,8.653017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1345646.b3dm"}}}