{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950426,-0.310950,0.000000,0.000000,0.173537,-0.530420,0.829783,0.000000,-0.257479,0.786992,0.560668,0.000000,-1643968.399946,5024830.165460,3555821.704176,1],    "boundingVolume": {    "region": [1.886939,0.595134,1.887039,0.595251,0.000000,8.528626]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/8_1345757.b3dm"}}}