{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949293,-0.314394,0.000000,0.000000,0.175740,-0.530635,0.829181,0.000000,-0.260141,0.785478,0.561562,0.000000,-1660966.053656,5015182.261165,3561500.323214,1],    "boundingVolume": {    "region": [1.890565,0.596231,1.890664,0.596313,0.000000,8.242302]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1447272.b3dm"}}}