{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950035,-0.312142,0.000000,0.000000,0.174043,-0.529718,0.830125,0.000000,-0.258574,0.786996,0.560158,0.000000,-1650956.120742,5024847.192124,3552580.490827,1],    "boundingVolume": {    "region": [1.888161,0.594511,1.888325,0.594642,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460398.b3dm"}}}