{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949958,-0.312378,0.000000,0.000000,0.174695,-0.531258,0.829004,0.000000,-0.258416,0.785858,0.561825,0.000000,-1649958.236885,5017616.444063,3563176.733952,1],    "boundingVolume": {    "region": [1.888422,0.596486,1.888560,0.596695,0.000000,8.733910]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/4_1405521.b3dm"}}}