{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950579,-0.310483,0.000000,0.000000,0.173636,-0.531606,0.829003,0.000000,-0.256849,0.786371,0.561826,0.000000,-1639949.380333,5020891.820892,3563183.468469,1],    "boundingVolume": {    "region": [1.886449,0.596543,1.886546,0.596641,0.000000,14.679444]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1392013.b3dm"}}}