{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950550,-0.310571,0.000000,0.000000,0.173559,-0.531202,0.829278,0.000000,-0.257008,0.786611,0.561418,0.000000,-1640962.890911,5022413.238495,3560589.232209,1],    "boundingVolume": {    "region": [1.886541,0.596049,1.886639,0.596148,0.000000,8.386551]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426680.b3dm"}}}