{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949624,-0.313392,0.000000,0.000000,0.115516,-0.350030,0.929588,0.000000,-0.291059,0.881949,0.370743,0.000000,-1857267.294621,5627783.369959,2349899.664936,1],    "boundingVolume": {    "region": [1.889491,0.379718,1.889629,0.379899,0.000000,7.020857]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_74433.b3dm"}}}