{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950650,-0.310265,0.000000,0.000000,0.173404,-0.531311,0.829240,0.000000,-0.256742,0.786658,0.561474,0.000000,-1639267.460219,5022714.082763,3560943.423471,1],    "boundingVolume": {    "region": [1.886219,0.596117,1.886316,0.596215,0.000000,8.809058]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/1_1427312.b3dm"}}}