{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950685,-0.310158,0.000000,0.000000,0.173364,-0.531388,0.829199,0.000000,-0.256641,0.786647,0.561535,0.000000,-1638624.329462,5022646.033603,3561332.765675,1],    "boundingVolume": {    "region": [1.886107,0.596191,1.886205,0.596289,0.000000,8.660056]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1341833.b3dm"}}}