{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949108,-0.314951,0.000000,0.000000,0.116118,-0.349922,0.929555,0.000000,-0.292496,0.881438,0.370829,0.000000,-1866436.077092,5624519.753119,2350445.177895,1],    "boundingVolume": {    "region": [1.891147,0.379844,1.891256,0.379959,0.000000,67.498375]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_412.b3dm"}}}