{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949091,-0.315002,0.000000,0.000000,0.176015,-0.530328,0.829320,0.000000,-0.260688,0.785443,0.561356,0.000000,-1664458.521070,5014957.119966,3560195.422132,1],    "boundingVolume": {    "region": [1.891187,0.595970,1.891324,0.596077,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373611.b3dm"}}}