{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858794,-0.512322,0.000000,0.000000,0.262127,-0.439398,0.859196,0.000000,-0.439408,0.736570,0.514185,0.000000,-2805086.902573,4702104.404957,3260473.545250,1],    "boundingVolume": {    "region": [2.108600,0.539994,2.108765,0.540120,0.000000,33.926833]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/4_221218.b3dm"}}}