{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951237,-0.308460,0.000000,0.000000,0.115648,-0.356639,0.927057,0.000000,-0.285688,0.881014,0.377090,0.000000,-1823027.922376,5621904.242126,2390165.572499,1],    "boundingVolume": {    "region": [1.884288,0.386600,1.884452,0.386703,0.000000,50.877537]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/13_18886.b3dm"}}}