{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950356,-0.311164,0.000000,0.000000,0.173849,-0.530969,0.829366,0.000000,-0.257526,0.786535,0.561287,0.000000,-1644271.624910,5021924.279829,3559757.979002,1],    "boundingVolume": {    "region": [1.887164,0.595882,1.887264,0.595999,0.000000,8.808885]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/14_1429973.b3dm"}}}