{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949489,-0.313800,0.000000,0.000000,0.114620,-0.346814,0.930904,0.000000,-0.291854,0.883087,0.367394,0.000000,-1862326.826587,5634996.203590,2328656.755995,1],    "boundingVolume": {    "region": [1.889904,0.376081,1.890073,0.376331,0.000000,11.524416]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_28884.b3dm"}}}