{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950298,-0.311340,0.000000,0.000000,0.174232,-0.531806,0.828749,0.000000,-0.257479,0.785897,0.562202,0.000000,-1643973.437587,5017867.774196,3565572.135391,1],    "boundingVolume": {    "region": [1.887351,0.596997,1.887448,0.597096,0.000000,8.623773]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/11_1401173.b3dm"}}}