{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949127,-0.314895,0.000000,0.000000,0.116056,-0.349805,0.929606,0.000000,-0.292459,0.881505,0.370698,0.000000,-1866204.450489,5624945.087578,2349616.686066,1],    "boundingVolume": {    "region": [1.891088,0.379703,1.891196,0.379818,0.000000,57.910820]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76019.b3dm"}}}