{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944017,-0.329896,0.000000,0.000000,0.184281,-0.527333,0.829434,0.000000,-0.273051,0.781353,0.561187,0.000000,-1743395.621164,4988837.476975,3559119.621650,1],    "boundingVolume": {    "region": [1.906942,0.595762,1.907037,0.595877,0.000000,8.633310]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1272081.b3dm"}}}