{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949001,-0.315275,0.000000,0.000000,0.116037,-0.349281,0.929805,0.000000,-0.292876,0.881579,0.370193,0.000000,-1868859.379278,5625410.128121,2346412.533944,1],    "boundingVolume": {    "region": [1.891488,0.379159,1.891596,0.379275,0.000000,48.557655]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/19/15_7952.b3dm"}}}