{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950642,-0.310291,0.000000,0.000000,0.117334,-0.359476,0.925748,0.000000,-0.286974,0.879205,0.380321,0.000000,-1831246.281812,5610407.631558,2410669.910666,1],    "boundingVolume": {    "region": [1.886294,0.390143,1.886297,0.390145,0.000000,4.407875]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/28.b3dm"}}}