{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949440,-0.313949,0.000000,0.000000,0.175513,-0.530785,0.829134,0.000000,-0.259757,0.785554,0.561633,0.000000,-1658518.710139,5015669.555120,3561951.548753,1],    "boundingVolume": {    "region": [1.890096,0.596317,1.890195,0.596398,0.000000,13.684404]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1409090.b3dm"}}}