{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949034,-0.315173,0.000000,0.000000,0.175965,-0.529857,0.829631,0.000000,-0.260928,0.785694,0.560894,0.000000,-1665987.190368,5016549.212127,3557255.994394,1],    "boundingVolume": {    "region": [1.891382,0.595438,1.891488,0.595492,0.000000,8.713676]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4.b3dm"}}}