{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942108,-0.335310,0.000000,0.000000,0.187719,-0.527427,0.828603,0.000000,-0.277251,0.778984,0.562419,0.000000,-1770223.030141,4973735.886248,3566951.884852,1],    "boundingVolume": {    "region": [1.912668,0.597278,1.912792,0.597340,0.000000,8.588381]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1288565.b3dm"}}}