{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950329,-0.311246,0.000000,0.000000,0.174083,-0.531530,0.828958,0.000000,-0.257466,0.786122,0.561893,0.000000,-1643890.403918,5019298.830690,3563608.877592,1],    "boundingVolume": {    "region": [1.887224,0.596580,1.887376,0.596765,0.000000,8.820846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1399810.b3dm"}}}