{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950486,-0.310768,0.000000,0.000000,0.173445,-0.530483,0.829762,0.000000,-0.257322,0.787021,0.560699,0.000000,-1642965.375498,5025017.921726,3556018.631294,1],    "boundingVolume": {    "region": [1.886748,0.595171,1.886847,0.595288,0.000000,8.808242]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1450272.b3dm"}}}