{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949875,-0.312630,0.000000,0.000000,0.115084,-0.349665,0.929780,0.000000,-0.290411,0.882366,0.370259,0.000000,-1853131.794502,5630436.430220,2346827.920256,1],    "boundingVolume": {    "region": [1.888688,0.379197,1.888826,0.379378,0.000000,5.138910]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_5448.b3dm"}}}