{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895731,-0.444596,0.000000,0.000000,0.284165,-0.572511,0.769078,0.000000,-0.340988,0.686992,0.641692,0.000000,-2177873.080090,4387783.658810,4071014.645246,1],    "boundingVolume": {    "region": [2.031458,0.696643,2.031580,0.696761,0.000000,24.370976]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_766644.b3dm"}}}