{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950139,-0.311827,0.000000,0.000000,0.174181,-0.530731,0.829449,0.000000,-0.258100,0.786434,0.561165,0.000000,-1647938.161078,5021278.693639,3558978.367335,1],    "boundingVolume": {    "region": [1.887862,0.595734,1.887961,0.595851,0.000000,8.773887]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1428996.b3dm"}}}