{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950663,-0.310225,0.000000,0.000000,0.173379,-0.531308,0.829248,0.000000,-0.256712,0.786675,0.561463,0.000000,-1639075.423447,5022825.611070,3560874.969878,1],    "boundingVolume": {    "region": [1.886178,0.596104,1.886275,0.596202,0.000000,8.760521]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/1_1427195.b3dm"}}}