{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949903,-0.312546,0.000000,0.000000,0.174445,-0.530179,0.829746,0.000000,-0.258790,0.786523,0.560722,0.000000,-1652335.153621,5021840.082612,3556165.425487,1],    "boundingVolume": {    "region": [1.888587,0.595192,1.888751,0.595323,0.000000,8.806304]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356384.b3dm"}}}