{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950705,-0.310098,0.000000,0.000000,0.173421,-0.531677,0.829002,0.000000,-0.256530,0.786475,0.561827,0.000000,-1637913.441291,5021552.474062,3563188.898364,1],    "boundingVolume": {    "region": [1.886010,0.596508,1.886175,0.596677,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1392048.b3dm"}}}