{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899176,-0.437587,0.000000,0.000000,0.282590,-0.580679,0.763515,0.000000,-0.333166,0.684606,0.648317,0.000000,-2127974.324382,4372667.374792,4113163.903682,1],    "boundingVolume": {    "region": [2.023627,0.705312,2.023793,0.705431,0.000000,6.967506]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/6_1843666.b3dm"}}}