{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944301,-0.329084,0.000000,0.000000,0.183944,-0.527823,0.829197,0.000000,-0.272300,0.781362,0.561539,0.000000,-1738604.690081,4988902.365481,3561356.444181,1],    "boundingVolume": {    "region": [1.906072,0.596207,1.906187,0.596282,0.000000,8.760794]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_851568.b3dm"}}}