Graph scale logarithmic

[shrolding]

Hi, i don´t writte english very well, i hope you understand me..
I want to graph in scale a line logarithmic in my scene, becouse i have value logarithmic, the cuestion is..
QT have a function to do that? o i need use a form

[Eddy]

"Follow this link":http://developer.qt.nokia.com/faq/answer/do_you_provide_a_tool_for_creating_graphs

Also if you click the qwt tag on the right you will find more usefull info.

On the qwt website there is an example using logaritmic scale if I remember well.