{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950763,-0.309919,0.000000,0.000000,0.173230,-0.531431,0.829200,0.000000,-0.256443,0.786712,0.561534,0.000000,-1637360.230872,5023063.801905,3561325.010228,1],    "boundingVolume": {    "region": [1.885831,0.596129,1.885977,0.596348,0.000000,8.803725]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1423472.b3dm"}}}