{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950539,-0.310607,0.000000,0.000000,0.173709,-0.531594,0.828995,0.000000,-0.256948,0.786330,0.561838,0.000000,-1640586.919427,5020630.567336,3563257.608206,1],    "boundingVolume": {    "region": [1.886579,0.596557,1.886676,0.596655,0.000000,15.223519]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1392555.b3dm"}}}