{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897489,-0.441036,0.000000,0.000000,0.285698,-0.581383,0.761820,0.000000,-0.335041,0.681793,0.650312,0.000000,-2139968.461627,4354739.496401,4125855.808752,1],    "boundingVolume": {    "region": [2.027474,0.707881,2.027625,0.708109,0.000000,6.761153]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/1_1796409.b3dm"}}}