{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950544,-0.310589,0.000000,0.000000,0.173734,-0.531705,0.828919,0.000000,-0.256910,0.786262,0.561951,0.000000,-1640341.100190,5020197.063710,3563976.640617,1],    "boundingVolume": {    "region": [1.886560,0.596693,1.886658,0.596792,0.000000,14.800804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1395033.b3dm"}}}