{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896508,-0.443027,0.000000,0.000000,0.282968,-0.572613,0.769444,0.000000,-0.339948,0.687917,0.641253,0.000000,-2171225.586477,4393681.535744,4068222.218999,1],    "boundingVolume": {    "region": [2.029678,0.696074,2.029860,0.696186,0.000000,49.342115]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/6_507518.b3dm"}}}