{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950685,-0.310160,0.000000,0.000000,0.173141,-0.530704,0.829684,0.000000,-0.256794,0.787111,0.560815,0.000000,-1639593.504475,5025595.026851,3556754.327241,1],    "boundingVolume": {    "region": [1.886099,0.595312,1.886215,0.595427,0.000000,8.789628]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1450670.b3dm"}}}