{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949201,-0.314670,0.000000,0.000000,0.116554,-0.351583,0.928873,0.000000,-0.292018,0.880870,0.372550,0.000000,-1863394.994221,5620921.811729,2361365.899060,1],    "boundingVolume": {    "region": [1.890836,0.381706,1.890975,0.381805,0.000000,19.488317]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/18_68319.b3dm"}}}