{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949082,-0.315030,0.000000,0.000000,0.116156,-0.349938,0.929544,0.000000,-0.292566,0.881403,0.370856,0.000000,-1866883.238086,5624297.902222,2350619.741500,1],    "boundingVolume": {    "region": [1.891231,0.379873,1.891339,0.379988,0.000000,68.927894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_886.b3dm"}}}