{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949329,-0.314285,0.000000,0.000000,0.175540,-0.530236,0.829479,0.000000,-0.260145,0.785792,0.561120,0.000000,-1660990.000164,5017179.565688,3558693.860637,1],    "boundingVolume": {    "region": [1.890431,0.595685,1.890569,0.595791,0.000000,8.746050]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6_1444856.b3dm"}}}