{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950052,-0.312091,0.000000,0.000000,0.115673,-0.352124,0.928778,0.000000,-0.289594,0.881569,0.372789,0.000000,-1847933.054620,5625383.960952,2362880.093093,1],    "boundingVolume": {    "region": [1.888127,0.381961,1.888253,0.382064,0.000000,4.208878]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/21_63383.b3dm"}}}