{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950505,-0.310710,0.000000,0.000000,0.173728,-0.531458,0.829078,0.000000,-0.257060,0.786382,0.561714,0.000000,-1641300.034032,5020959.011153,3562471.623593,1],    "boundingVolume": {    "region": [1.886688,0.596407,1.886785,0.596506,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1389261.b3dm"}}}