{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949107,-0.314952,0.000000,0.000000,0.175970,-0.530284,0.829357,0.000000,-0.260658,0.785493,0.561301,0.000000,-1664270.366459,5015270.543668,3559844.224228,1],    "boundingVolume": {    "region": [1.891134,0.595904,1.891271,0.596010,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1361371.b3dm"}}}