{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949056,-0.315107,0.000000,0.000000,0.176223,-0.530757,0.829001,0.000000,-0.260674,0.785110,0.561829,0.000000,-1664371.585080,5012835.580692,3563202.329226,1],    "boundingVolume": {    "region": [1.891316,0.596585,1.891417,0.596606,0.000000,8.426633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1338588.b3dm"}}}