{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858841,-0.512242,0.000000,0.000000,0.262177,-0.439574,0.859091,0.000000,-0.439285,0.736520,0.514361,0.000000,-2804303.553262,4701789.139943,3261594.289186,1],    "boundingVolume": {    "region": [2.108516,0.540209,2.108662,0.540316,0.000000,28.554366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6.b3dm"}}}