{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950509,-0.310698,0.000000,0.000000,0.173712,-0.531433,0.829098,0.000000,-0.257056,0.786404,0.561686,0.000000,-1641273.982572,5021097.364549,3562289.847910,1],    "boundingVolume": {    "region": [1.886675,0.596373,1.886773,0.596471,0.000000,8.585765]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1331125.b3dm"}}}