{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950539,-0.310606,0.000000,0.000000,0.173397,-0.530640,0.829672,0.000000,-0.257160,0.786978,0.560834,0.000000,-1641930.285419,5024747.126524,3556873.503082,1],    "boundingVolume": {    "region": [1.886569,0.595335,1.886685,0.595449,0.000000,8.658960]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1345174.b3dm"}}}