{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950564,-0.310528,0.000000,0.000000,0.173635,-0.531517,0.829060,0.000000,-0.256904,0.786414,0.561741,0.000000,-1640300.759509,5021162.724138,3562643.585990,1],    "boundingVolume": {    "region": [1.886496,0.596440,1.886594,0.596539,0.000000,12.057715]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/5_1389681.b3dm"}}}