{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943849,-0.330378,0.000000,0.000000,0.184529,-0.527176,0.829478,0.000000,-0.273465,0.781256,0.561121,0.000000,-1746039.286066,4988215.804905,3558697.833949,1],    "boundingVolume": {    "region": [1.907453,0.595682,1.907548,0.595796,0.000000,8.807456]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1272797.b3dm"}}}