{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852958,-0.521980,0.000000,0.000000,0.269334,-0.440114,0.856597,0.000000,-0.446324,0.729330,0.518530,0.000000,-2849278.435802,4655955.681187,3288077.995165,1],    "boundingVolume": {    "region": [2.119920,0.545089,2.120013,0.545173,0.000000,196.227166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_4423.b3dm"}}}