{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896463,-0.443118,0.000000,0.000000,0.283062,-0.572658,0.769375,0.000000,-0.339987,0.687821,0.641335,0.000000,-2171477.287710,4393071.556146,4068743.065966,1],    "boundingVolume": {    "region": [2.029779,0.696180,2.029962,0.696293,0.000000,82.879141]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/7_516243.b3dm"}}}