{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950288,-0.311373,0.000000,0.000000,0.174016,-0.531084,0.829258,0.000000,-0.257664,0.786374,0.561448,0.000000,-1645156.069727,5020904.270372,3560781.126692,1],    "boundingVolume": {    "region": [1.887357,0.596042,1.887509,0.596228,0.000000,8.617396]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_1431518.b3dm"}}}