{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943114,-0.332471,0.000000,0.000000,0.186302,-0.528480,0.828251,0.000000,-0.274786,0.779482,0.562939,0.000000,-1754487.289973,4976922.686577,3570257.679762,1],    "boundingVolume": {    "region": [1.909656,0.597898,1.909781,0.597978,0.000000,8.311707]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1249231.b3dm"}}}