{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852932,-0.522023,0.000000,0.000000,0.269353,-0.440095,0.856601,0.000000,-0.446362,0.729310,0.518524,0.000000,-2849525.645509,4655832.638887,3288038.261250,1],    "boundingVolume": {    "region": [2.119971,0.545082,2.120063,0.545166,0.000000,211.379700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_21419.b3dm"}}}