{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949075,-0.315049,0.000000,0.000000,0.176125,-0.530571,0.829141,0.000000,-0.260670,0.785259,0.561622,0.000000,-1664346.024423,5013786.363527,3561885.179516,1],    "boundingVolume": {    "region": [1.891236,0.596292,1.891374,0.596398,0.000000,8.725550]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1416339.b3dm"}}}