{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950382,-0.311084,0.000000,0.000000,0.173971,-0.531492,0.829006,0.000000,-0.257347,0.786212,0.561822,0.000000,-1643131.972734,5019871.904643,3563154.480306,1],    "boundingVolume": {    "region": [1.887081,0.596537,1.887179,0.596636,0.000000,8.742048]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1329492.b3dm"}}}