{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949211,-0.314642,0.000000,0.000000,0.116548,-0.351601,0.928867,0.000000,-0.291989,0.880873,0.372565,0.000000,-1863214.153280,5620942.268980,2361459.269853,1],    "boundingVolume": {    "region": [1.890806,0.381721,1.890945,0.381821,0.000000,29.734073]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/18_68431.b3dm"}}}