{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950660,-0.310234,0.000000,0.000000,0.114193,-0.349925,0.929792,0.000000,-0.288189,0.883107,0.370228,0.000000,-1838950.242164,5635165.138608,2346634.846864,1],    "boundingVolume": {    "region": [1.886161,0.379215,1.886309,0.379294,0.000000,6.643965]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/17_4735.b3dm"}}}