{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949082,-0.315029,0.000000,0.000000,0.176034,-0.530335,0.829311,0.000000,-0.260707,0.785428,0.561369,0.000000,-1664584.381967,5014858.081877,3560275.542193,1],    "boundingVolume": {    "region": [1.891215,0.595986,1.891352,0.596092,0.000000,11.857457]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373454.b3dm"}}}