{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898772,-0.438417,0.000000,0.000000,0.283238,-0.580649,0.763297,0.000000,-0.333702,0.684102,0.648573,0.000000,-2131400.839412,4369453.219399,4114794.116423,1],    "boundingVolume": {    "region": [2.024550,0.705649,2.024716,0.705768,0.000000,17.268650]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1833454.b3dm"}}}