{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858268,-0.513202,0.000000,0.000000,0.262729,-0.439383,0.859020,0.000000,-0.440071,0.735967,0.514481,0.000000,-2809325.105907,4698259.729379,3262353.662460,1],    "boundingVolume": {    "region": [2.109625,0.540339,2.109789,0.540465,0.000000,54.673166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_391411.b3dm"}}}