{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896459,-0.443128,0.000000,0.000000,0.283041,-0.572599,0.769427,0.000000,-0.340018,0.687865,0.641272,0.000000,-2171671.427810,4393346.022416,4068345.753599,1],    "boundingVolume": {    "region": [2.029790,0.696099,2.029972,0.696212,0.000000,54.891054]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/6_516181.b3dm"}}}