{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948726,-0.316098,0.000000,0.000000,0.176401,-0.529445,0.829801,0.000000,-0.261748,0.785602,0.560640,0.000000,-1671225.071654,5015956.124479,3555645.880516,1],    "boundingVolume": {    "region": [1.892362,0.595047,1.892458,0.595270,0.000000,8.816292]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1178984.b3dm"}}}