{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949138,-0.314862,0.000000,0.000000,0.116094,-0.349960,0.929543,0.000000,-0.292409,0.881454,0.370858,0.000000,-1865882.843339,5624624.758330,2350631.882063,1],    "boundingVolume": {    "region": [1.891053,0.379875,1.891162,0.379991,0.000000,72.367680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_944.b3dm"}}}