[vtkusers] Where can i find a class by that i can draw Bode?

[=?gb2312?q?=FFffffc3=FFffffcf=FFffffe7=FFffffe2=20=FFffffd0=FFffffbb?=]

Hi.
   I know the vtkXYPlotActor in vtk by that can draw
xyplot with x axis being linear increasing.But the
thesis that I am going on needs I can draw Bode by vtk
having x axis isn't linear increasing.Has vtk a some
class?Where can I find? If vtk havn't it,what should I
do?
     
     Thanks.



_________________________________________________________
Do You Yahoo!? 
完全免费的雅虎电邮，马上注册获赠额外60兆网络存储空间
http://cn.rd.yahoo.com/mail_cn/tag/?http://cn.mail.yahoo.com