{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949300,-0.314371,0.000000,0.000000,0.175477,-0.529884,0.829717,0.000000,-0.260291,0.785997,0.560765,0.000000,-1661923.156936,5018479.651483,3556439.522582,1],    "boundingVolume": {    "region": [1.890522,0.595257,1.890659,0.595363,0.000000,6.527511]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1368383.b3dm"}}}