{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949068,-0.315071,0.000000,0.000000,0.116083,-0.349668,0.929654,0.000000,-0.292639,0.881496,0.370576,0.000000,-1867349.224250,5624890.745953,2348842.342792,1],    "boundingVolume": {    "region": [1.891274,0.379572,1.891382,0.379687,0.000000,21.611940]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/18_74899.b3dm"}}}