*Vertices 3
1 "灌溉排水学报" 0.0 0.0 0.0 x_fact 11.860465 y_fact 20.930233
2 "水利学报" 0.0 0.0 0.0 x_fact 13.023256 y_fact 44.883721
3 "水科学进展" 0.0 0.0 0.0 x_fact 16.976744 y_fact 34.186047
*Matrix 
0.000000 0.799466 0.672495 
0.799466 0.000000 0.811137 
0.672495 0.811137 0.000000