{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948893,-0.315597,0.000000,0.000000,0.176352,-0.530230,0.829311,0.000000,-0.261177,0.785271,0.561369,0.000000,-1667583.582590,5013859.143131,3560278.922792,1],    "boundingVolume": {    "region": [1.891813,0.595986,1.891951,0.596093,0.000000,8.808038]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1068519.b3dm"}}}