{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858271,-0.513197,0.000000,0.000000,0.262409,-0.438853,0.859389,0.000000,-0.440258,0.736288,0.513860,0.000000,-2810511.327179,4700303.334446,3258412.390135,1],    "boundingVolume": {    "region": [2.109619,0.539616,2.109784,0.539741,0.000000,46.872766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/1_296017.b3dm"}}}