{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952821,-0.303531,0.000000,0.000000,0.113138,-0.355153,0.927937,0.000000,-0.281394,0.883328,0.374898,0.000000,-1795612.712215,5636642.228417,2376260.848423,1],    "boundingVolume": {    "region": [1.879119,0.384222,1.879267,0.384351,0.000000,4.093373]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_39187.b3dm"}}}