{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950339,-0.311215,0.000000,0.000000,0.173874,-0.530947,0.829375,0.000000,-0.257571,0.786529,0.561274,0.000000,-1644559.802743,5021889.978258,3559673.813392,1],    "boundingVolume": {    "region": [1.887218,0.595866,1.887318,0.595983,0.000000,8.806721]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/14_1429848.b3dm"}}}