{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950852,-0.309646,0.000000,0.000000,0.173001,-0.531246,0.829366,0.000000,-0.256270,0.786945,0.561287,0.000000,-1636249.971269,5024545.777906,3559754.966243,1],    "boundingVolume": {    "region": [1.885544,0.595830,1.885690,0.596050,0.000000,8.797125]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1339887.b3dm"}}}