{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950477,-0.310795,0.000000,0.000000,0.173731,-0.531305,0.829176,0.000000,-0.257161,0.786453,0.561570,0.000000,-1641941.695761,5021405.184912,3561553.143968,1],    "boundingVolume": {    "region": [1.886777,0.596232,1.886875,0.596331,0.000000,8.567033]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/3_1427648.b3dm"}}}