*Vertices 4
1 "土木工程学报" 0.0 0.0 0.0 x_fact 2.362205 y_fact 14.435696
2 "中国铁道科学" 0.0 0.0 0.0 x_fact 14.698163 y_fact 39.107612
3 "铁道学报" 0.0 0.0 0.0 x_fact 7.349081 y_fact 22.309711
4 "铁道科学与工程学报" 0.0 0.0 0.0 x_fact 16.272966 y_fact 24.146982
*Matrix 
0.000000 0.000000 0.000000 0.426615 
0.000000 0.000000 0.716629 0.654292 
0.000000 0.716629 0.000000 0.731394 
0.426615 0.654292 0.731394 0.000000