{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895736,-0.444587,0.000000,0.000000,0.284151,-0.572497,0.769094,0.000000,-0.340988,0.687010,0.641673,0.000000,-2177873.439574,4387893.526333,4070896.827362,1],    "boundingVolume": {    "region": [2.031448,0.696619,2.031570,0.696737,0.000000,24.370976]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_663306.b3dm"}}}