{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950749,-0.309962,0.000000,0.000000,0.173093,-0.530929,0.829550,0.000000,-0.256588,0.787036,0.561014,0.000000,-1638281.826018,5025120.935093,3558019.834588,1],    "boundingVolume": {    "region": [1.885891,0.595553,1.886007,0.595667,0.000000,8.812964]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/11_1421580.b3dm"}}}