{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948864,-0.315685,0.000000,0.000000,0.176345,-0.530047,0.829429,0.000000,-0.261287,0.785360,0.561194,0.000000,-1668284.963755,5014422.273274,3559164.583550,1],    "boundingVolume": {    "region": [1.891906,0.595774,1.892043,0.595881,0.000000,8.587410]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1147286.b3dm"}}}