{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951182,-0.308629,0.000000,0.000000,0.115681,-0.356525,0.927096,0.000000,-0.285858,0.881001,0.376991,0.000000,-1824107.980725,5621821.511706,2389540.266536,1],    "boundingVolume": {    "region": [1.884466,0.386494,1.884630,0.386597,0.000000,56.986053]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/12_4615.b3dm"}}}