{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871364,-0.490636,0.000000,0.000000,0.211797,-0.376150,0.902027,0.000000,-0.442011,0.785006,0.434042,0.000000,-2820984.540177,5010036.168482,2751579.437171,1],    "boundingVolume": {    "region": [2.083560,0.448934,2.083672,0.449014,0.000000,50.372445]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221550.b3dm"}}}