{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951648,-0.307191,0.000000,0.000000,0.170554,-0.528361,0.831712,0.000000,-0.254963,0.789853,0.557787,0.000000,-1627888.268664,5043042.977383,3537511.965049,1],    "boundingVolume": {    "region": [1.882982,0.591673,1.883090,0.591761,0.000000,8.386418]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/39/43_1383022.b3dm"}}}