{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949680,-0.313221,0.000000,0.000000,0.115968,-0.351611,0.928935,0.000000,-0.290693,0.881375,0.372392,0.000000,-1854940.749604,5624141.862280,2360361.606699,1],    "boundingVolume": {    "region": [1.889310,0.381535,1.889449,0.381635,0.000000,6.059937]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/16_67770.b3dm"}}}