{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897946,-0.440106,0.000000,0.000000,0.282466,-0.576314,0.766861,0.000000,-0.336564,0.686689,0.644347,0.000000,-2149641.359850,4385896.827921,4087904.007521,1],    "boundingVolume": {    "region": [2.026450,0.700134,2.026577,0.700203,0.000000,8.081776]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/0_883476.b3dm"}}}