{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950761,-0.309925,0.000000,0.000000,0.173231,-0.531424,0.829204,0.000000,-0.256450,0.786715,0.561527,0.000000,-1637400.620869,5023080.458358,3561283.228473,1],    "boundingVolume": {    "region": [1.885837,0.596121,1.885983,0.596340,0.000000,8.803725]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1423428.b3dm"}}}