{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950514,-0.310683,0.000000,0.000000,0.173700,-0.531423,0.829107,0.000000,-0.257047,0.786417,0.561672,0.000000,-1641213.665956,5021178.615229,3562203.692116,1],    "boundingVolume": {    "region": [1.886659,0.596356,1.886757,0.596455,0.000000,8.601306]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_1331256.b3dm"}}}