Draw Line

[aloysiusjegan]

Hi,

I am new to QWT. Can anyone send me a sample code, how to draw a line using QWT?

Thanks.
AJ.

[wysota]

What kind of line do you mean? You mean a plot (a curve)?

[aloysiusjegan]

Hi,

Please see the attached image. I wanted to draw a line between A and B as shown in the image.


Regards
AJ.

[Uwe]

If you are using a Qwt package from one of the common Linux distributions you probably don't have the Qwt examples.

Download the official Qwt tarball, where you should find enough example code.

Uwe

[aloysiusjegan]

Thanks for the reply.

I got the idea from examples.

But in my actual requirement, I need to zoom in/out the graph along with the line what I draw.

The zoom in/out is working fine with plot curve and other plots. It is not zoom in/out the line drawn using 'drawLine' function.

How to do it?

Thanks.

-AJ.