{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950759,-0.309932,0.000000,0.000000,0.173236,-0.531426,0.829202,0.000000,-0.256455,0.786710,0.561532,0.000000,-1637433.324149,5023050.534998,3561310.215933,1],    "boundingVolume": {    "region": [1.885845,0.596126,1.885991,0.596345,0.000000,8.393365]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1339014.b3dm"}}}