{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949263,-0.314482,0.000000,0.000000,0.175869,-0.530860,0.829010,0.000000,-0.260159,0.785290,0.561815,0.000000,-1661086.723262,5013987.976860,3563114.348781,1],    "boundingVolume": {    "region": [1.890657,0.596568,1.890758,0.596590,0.000000,12.158454]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/8_1418122.b3dm"}}}