{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950797,-0.309814,0.000000,0.000000,0.173199,-0.531535,0.829140,0.000000,-0.256338,0.786683,0.561623,0.000000,-1636686.195527,5022877.971337,3561893.067441,1],    "boundingVolume": {    "region": [1.885721,0.596237,1.885866,0.596456,0.000000,8.065973]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/15_1324946.b3dm"}}}