{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858196,-0.513322,0.000000,0.000000,0.262678,-0.439157,0.859152,0.000000,-0.440243,0.736018,0.514260,0.000000,-2810417.154518,4698586.645108,3260951.403956,1],    "boundingVolume": {    "region": [2.109766,0.540082,2.109930,0.540207,0.000000,108.761311]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/5_129800.b3dm"}}}