{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949099,-0.314979,0.000000,0.000000,0.176068,-0.530531,0.829179,0.000000,-0.260624,0.785315,0.561566,0.000000,-1664053.122324,5014139.977494,3561526.656420,1],    "boundingVolume": {    "region": [1.891163,0.596224,1.891300,0.596330,0.000000,8.649238]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1372878.b3dm"}}}