{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949440,-0.313949,0.000000,0.000000,0.175505,-0.530762,0.829150,0.000000,-0.259762,0.785570,0.561608,0.000000,-1658550.386437,5015771.165209,3561794.771538,1],    "boundingVolume": {    "region": [1.890096,0.596287,1.890195,0.596369,0.000000,8.722963]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1408742.b3dm"}}}