{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949591,-0.313492,0.000000,0.000000,0.174954,-0.529949,0.829786,0.000000,-0.259586,0.786303,0.560663,0.000000,-1657417.721636,5020434.535233,3555787.325585,1],    "boundingVolume": {    "region": [1.889584,0.595053,1.889746,0.595319,0.000000,8.805125]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1457351.b3dm"}}}