{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949015,-0.315231,0.000000,0.000000,0.176141,-0.530278,0.829325,0.000000,-0.260879,0.785385,0.561349,0.000000,-1665678.763359,5014586.995280,3560146.401995,1],    "boundingVolume": {    "region": [1.891428,0.595961,1.891565,0.596068,0.000000,8.800312]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1068730.b3dm"}}}