{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950462,-0.310841,0.000000,0.000000,0.173846,-0.531571,0.828981,0.000000,-0.257138,0.786254,0.561858,0.000000,-1641799.540035,5020142.803283,3563385.452199,1],    "boundingVolume": {    "region": [1.886826,0.596581,1.886923,0.596680,0.000000,19.090562]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1393322.b3dm"}}}