{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858260,-0.513214,0.000000,0.000000,0.262902,-0.439658,0.858827,0.000000,-0.439982,0.735792,0.514806,0.000000,-2808759.416205,4697153.597179,3264418.973351,1],    "boundingVolume": {    "region": [2.109640,0.540719,2.109804,0.540844,0.000000,73.131566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/10_438444.b3dm"}}}