{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950597,-0.310427,0.000000,0.000000,0.173594,-0.531583,0.829026,0.000000,-0.256810,0.786409,0.561792,0.000000,-1639701.318214,5021128.737771,3562965.245888,1],    "boundingVolume": {    "region": [1.886390,0.596501,1.886488,0.596600,0.000000,20.032815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/5_1390808.b3dm"}}}