{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949216,-0.314627,0.000000,0.000000,0.175958,-0.530857,0.828994,0.000000,-0.260274,0.785234,0.561840,0.000000,-1661816.983236,5013633.180165,3563272.017851,1],    "boundingVolume": {    "region": [1.890809,0.596598,1.890910,0.596620,0.000000,11.086840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/9_1420091.b3dm"}}}