{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949076,-0.315047,0.000000,0.000000,0.175849,-0.529743,0.829728,0.000000,-0.260854,0.785822,0.560749,0.000000,-1665519.455523,5017361.709524,3556335.204871,1],    "boundingVolume": {    "region": [1.891234,0.595237,1.891371,0.595343,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375023.b3dm"}}}