{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950599,-0.310420,0.000000,0.000000,0.173590,-0.531583,0.829027,0.000000,-0.256804,0.786411,0.561791,0.000000,-1639665.664119,5021146.052713,3562957.306251,1],    "boundingVolume": {    "region": [1.886383,0.596499,1.886480,0.596598,0.000000,20.032815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/5_1390778.b3dm"}}}