{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949297,-0.314379,0.000000,0.000000,0.175752,-0.530698,0.829139,0.000000,-0.260115,0.785441,0.561625,0.000000,-1660803.613297,5014948.825088,3561902.055048,1],    "boundingVolume": {    "region": [1.890550,0.596307,1.890649,0.596389,0.000000,8.504053]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1338286.b3dm"}}}