{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950620,-0.310356,0.000000,0.000000,0.117376,-0.359522,0.925725,0.000000,-0.287027,0.879163,0.380378,0.000000,-1831582.674115,5610142.649007,2411028.590696,1],    "boundingVolume": {    "region": [1.886304,0.390140,1.886423,0.390269,0.000000,6.542413]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_57371.b3dm"}}}