{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950156,-0.311774,0.000000,0.000000,0.173911,-0.530009,0.829967,0.000000,-0.258219,0.786944,0.560394,0.000000,-1648691.092003,5024522.409671,3554081.304154,1],    "boundingVolume": {    "region": [1.887774,0.594796,1.887938,0.594927,0.000000,8.799563]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1376032.b3dm"}}}