{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950667,-0.310214,0.000000,0.000000,0.173574,-0.531928,0.828809,0.000000,-0.256566,0.786259,0.562113,0.000000,-1638143.968705,5020177.909765,3565007.091386,1],    "boundingVolume": {    "region": [1.886132,0.596854,1.886297,0.597023,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396839.b3dm"}}}