{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897648,-0.440714,0.000000,0.000000,0.285517,-0.581541,0.761768,0.000000,-0.334773,0.681866,0.650373,0.000000,-2138257.419644,4355207.394922,4126246.391717,1],    "boundingVolume": {    "region": [2.027115,0.707962,2.027266,0.708190,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796958.b3dm"}}}