{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948807,-0.315856,0.000000,0.000000,0.176367,-0.529793,0.829587,0.000000,-0.261479,0.785464,0.560960,0.000000,-1669508.199908,5015079.235767,3557675.091835,1],    "boundingVolume": {    "region": [1.892107,0.595433,1.892203,0.595656,0.000000,8.778929]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/15_1181584.b3dm"}}}