{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949093,-0.314997,0.000000,0.000000,0.176012,-0.530327,0.829321,0.000000,-0.260683,0.785446,0.561355,0.000000,-1664430.707694,5014972.354526,3560187.022187,1],    "boundingVolume": {    "region": [1.891181,0.595969,1.891318,0.596075,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373631.b3dm"}}}