{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898021,-0.439953,0.000000,0.000000,0.283811,-0.579308,0.764103,0.000000,-0.335228,0.684258,0.647622,0.000000,-2141136.787635,4370429.497060,4108739.034159,1],    "boundingVolume": {    "region": [2.026277,0.704347,2.026409,0.704570,0.000000,6.242864]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_1850449.b3dm"}}}