{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950763,-0.309919,0.000000,0.000000,0.173224,-0.531413,0.829213,0.000000,-0.256448,0.786725,0.561515,0.000000,-1637386.298595,5023141.150639,3561204.736528,1],    "boundingVolume": {    "region": [1.885831,0.596106,1.885977,0.596325,0.000000,8.760186]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1339067.b3dm"}}}