{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949089,-0.315009,0.000000,0.000000,0.176023,-0.530340,0.829310,0.000000,-0.260690,0.785432,0.561371,0.000000,-1664473.057056,5014887.022696,3560286.749197,1],    "boundingVolume": {    "region": [1.891193,0.595988,1.891331,0.596094,0.000000,11.857457]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373442.b3dm"}}}