{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949738,-0.313047,0.000000,0.000000,0.174866,-0.530515,0.829443,0.000000,-0.259109,0.786096,0.561173,0.000000,-1654376.049247,5019122.654970,3559032.451191,1],    "boundingVolume": {    "region": [1.889120,0.595718,1.889273,0.595887,0.000000,8.820307]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1353115.b3dm"}}}