{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950653,-0.310255,0.000000,0.000000,0.173426,-0.531394,0.829183,0.000000,-0.256716,0.786605,0.561560,0.000000,-1639101.222983,5022379.017127,3561488.823168,1],    "boundingVolume": {    "region": [1.886209,0.596220,1.886306,0.596319,0.000000,8.798016]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/2_1427579.b3dm"}}}