{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942854,-0.333206,0.000000,0.000000,0.186736,-0.528396,0.828207,0.000000,-0.275379,0.779225,0.563004,0.000000,-1758273.469250,4975288.290959,3570670.238625,1],    "boundingVolume": {    "region": [1.910436,0.597985,1.910560,0.598048,0.000000,8.336448]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/2/21_1250107.b3dm"}}}