{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952580,-0.304287,0.000000,0.000000,0.112946,-0.353582,0.928560,0.000000,-0.282286,0.883705,0.373337,0.000000,-1801297.675679,5639021.149032,2366360.045663,1],    "boundingVolume": {    "region": [1.879936,0.382568,1.880036,0.382640,0.000000,19.583181]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/31/49_41863.b3dm"}}}