{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950253,-0.311480,0.000000,0.000000,0.174002,-0.530840,0.829416,0.000000,-0.257803,0.786497,0.561213,0.000000,-1646038.205783,5021684.859500,3559282.473899,1],    "boundingVolume": {    "region": [1.887496,0.595792,1.887596,0.595909,0.000000,8.819647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1429531.b3dm"}}}