{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949075,-0.315051,0.000000,0.000000,0.176042,-0.530320,0.829319,0.000000,-0.260728,0.785429,0.561357,0.000000,-1664712.834791,5014868.497677,3560201.310788,1],    "boundingVolume": {    "region": [1.891238,0.595972,1.891375,0.596078,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373585.b3dm"}}}