{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949410,-0.314039,0.000000,0.000000,0.175563,-0.530766,0.829135,0.000000,-0.259832,0.785530,0.561631,0.000000,-1658998.554603,5015519.243246,3561939.824457,1],    "boundingVolume": {    "region": [1.890191,0.596314,1.890290,0.596396,0.000000,10.221963]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1409069.b3dm"}}}