{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949163,-0.314785,0.000000,0.000000,0.116049,-0.349920,0.929564,0.000000,-0.292344,0.881498,0.370806,0.000000,-1865470.326865,5624901.169889,2350300.087754,1],    "boundingVolume": {    "region": [1.890972,0.379819,1.891081,0.379934,0.000000,71.051956]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/14/21_77453.b3dm"}}}