{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949121,-0.314911,0.000000,0.000000,0.175731,-0.529643,0.829818,0.000000,-0.260770,0.785944,0.560616,0.000000,-1664977.839313,5018142.420543,3555492.861156,1],    "boundingVolume": {    "region": [1.891134,0.595125,1.891184,0.595135,0.000000,8.506112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/0.b3dm"}}}