{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949293,-0.314393,0.000000,0.000000,0.175642,-0.530344,0.829389,0.000000,-0.260205,0.785676,0.561254,0.000000,-1661376.009802,5016443.761455,3559545.121657,1],    "boundingVolume": {    "region": [1.890566,0.595850,1.890660,0.595950,0.000000,8.783868]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8.b3dm"}}}