{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950712,-0.310075,0.000000,0.000000,0.173104,-0.530748,0.829664,0.000000,-0.256718,0.787114,0.560845,0.000000,-1639108.245334,5025615.443282,3556947.831689,1],    "boundingVolume": {    "region": [1.886011,0.595349,1.886126,0.595464,0.000000,8.508191]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1345062.b3dm"}}}