{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949890,-0.312584,0.000000,0.000000,0.174703,-0.530893,0.829235,0.000000,-0.258660,0.786024,0.561481,0.000000,-1651510.748770,5018668.163206,3560990.380350,1],    "boundingVolume": {    "region": [1.888623,0.596072,1.888794,0.596277,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1435847.b3dm"}}}