{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949856,-0.312688,0.000000,0.000000,0.174784,-0.530945,0.829185,0.000000,-0.258730,0.785948,0.561556,0.000000,-1651960.363116,5018181.503275,3561464.442848,1],    "boundingVolume": {    "region": [1.888732,0.596162,1.888903,0.596368,0.000000,24.885976]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1439746.b3dm"}}}