{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949086,-0.315016,0.000000,0.000000,0.175823,-0.529724,0.829746,0.000000,-0.260834,0.785847,0.560722,0.000000,-1665391.510375,5017525.341288,3556165.403410,1],    "boundingVolume": {    "region": [1.891201,0.595204,1.891338,0.595311,0.000000,8.820004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375215.b3dm"}}}