{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950947,-0.309355,0.000000,0.000000,0.113045,-0.347497,0.930842,0.000000,-0.287701,0.884383,0.367554,0.000000,-1835827.361779,5643265.406334,2329666.811309,1],    "boundingVolume": {    "region": [1.885266,0.376346,1.885356,0.376408,0.000000,10.208140]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9.b3dm"}}}