{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949049,-0.315127,0.000000,0.000000,0.176087,-0.530310,0.829316,0.000000,-0.260790,0.785405,0.561362,0.000000,-1665111.398663,5014716.033032,3560229.491256,1],    "boundingVolume": {    "region": [1.891318,0.595977,1.891456,0.596083,0.000000,14.029451]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1373538.b3dm"}}}