Orthogonal Plot

[vnuss]

Hello @ all.

I need some help regarding the canvas and the scaleengine of the qwt plot.

I have to paint an orthogonal plot.
This means, that i have to prevent a stretching plot. ( left axis should be like the bottom axis ).

Can anyone help me to solve this problem?

[Uwe]

The range of the axes are not changing, when resizing the plot, so I guess you are asking for how to set a fixed aspect ratio in widget coordinates.
If true have a look at the modes of QwtPlotRescaler - the playground/rescaler example shows how to use it.

Uwe

[vnuss]

Thanks a lot.
This Class fits my requirement.
It's a nice solution.