{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948824,-0.315806,0.000000,0.000000,0.176351,-0.529838,0.829561,0.000000,-0.261430,0.785453,0.560997,0.000000,-1669196.113320,5015012.271559,3557914.306080,1],    "boundingVolume": {    "region": [1.892055,0.595478,1.892151,0.595702,0.000000,8.071490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1070800.b3dm"}}}