{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898152,-0.439685,0.000000,0.000000,0.283898,-0.579924,0.763603,0.000000,-0.334802,0.683906,0.648212,0.000000,-2138425.189081,4368196.655997,4112498.579097,1],    "boundingVolume": {    "region": [2.025978,0.705123,2.026111,0.705346,0.000000,28.277042]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1844728.b3dm"}}}