{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857979,-0.513686,0.000000,0.000000,0.262950,-0.439189,0.859052,0.000000,-0.440503,0.735746,0.514428,0.000000,-2812078.781128,4696848.862613,3262015.026787,1],    "boundingVolume": {    "region": [2.110189,0.540277,2.110353,0.540403,0.000000,45.202033]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_387917.b3dm"}}}