{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949609,-0.313438,0.000000,0.000000,0.174996,-0.530176,0.829633,0.000000,-0.259492,0.786171,0.560891,0.000000,-1656822.336636,5019593.809400,3557241.620758,1],    "boundingVolume": {    "region": [1.889558,0.595421,1.889657,0.595503,0.000000,18.033740]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1457428.b3dm"}}}