{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950341,-0.311211,0.000000,0.000000,0.173734,-0.530531,0.829671,0.000000,-0.257660,0.786814,0.560834,0.000000,-1645123.882467,5023698.116780,3556879.561770,1],    "boundingVolume": {    "region": [1.887213,0.595335,1.887313,0.595452,0.000000,8.812426]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1454612.b3dm"}}}