{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950554,-0.310560,0.000000,0.000000,0.173676,-0.531582,0.829010,0.000000,-0.256915,0.786357,0.561816,0.000000,-1640370.499100,5020799.691244,3563119.871354,1],    "boundingVolume": {    "region": [1.886530,0.596530,1.886627,0.596629,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391601.b3dm"}}}