{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949691,-0.313189,0.000000,0.000000,0.174735,-0.529855,0.829892,0.000000,-0.259367,0.786487,0.560505,0.000000,-1656022.816533,5021607.558037,3554787.449523,1],    "boundingVolume": {    "region": [1.889264,0.594863,1.889426,0.595129,0.000000,8.782894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1357927.b3dm"}}}