{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949266,-0.314473,0.000000,0.000000,0.175866,-0.530867,0.829007,0.000000,-0.260151,0.785289,0.561821,0.000000,-1661033.720658,5013980.976667,3563148.676740,1],    "boundingVolume": {    "region": [1.890647,0.596574,1.890749,0.596596,0.000000,13.909362]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/8_1418370.b3dm"}}}