How to get the distance between the axis edge and the canvas edge?

[Nicho]

9109

How to get the distance marked by a red brace in the picture?
Can anybody tell me?

[Uwe]

Widget or plot coordinates ?

Uwe

[Nicho]

Which one is required for the start and end in QwtScaleWidget::setBorderDist (int start, int end)?


Widget or plot coordinates ?

Uwe

Uwe,
I just want to get that one which is required for the start and end in QwtScaleWidget::setBorderDist (int start, int end).

[Uwe]

What is the motivation behind trying to modify the border distances ?

Uwe

[Nicho]

What is the motivation behind trying to modify the border distances ?

Uwe

Uwe,
I am learning to use qwt to code something recently. Yesterday when I read some thread in our forum (the picture is cut from that thread)I found this.I am curious about the distance mentioned before.How does it come out? I dived into the codes about QwtPlot, QwtPlotLayout, etc.But I have no idea.And why not extend the backbone to touch the canvas edge?If I want to do that, how?

[Uwe]

And why not extend the backbone to touch the canvas edge?If I want to do that, how?
See: http://qwt.sourceforge.net/class_qwt_plot_layout.html#ad243b9afc9b5ce9530b500 dc35096d67

F.e. see the spectrogram example.

Uwe

[Nicho]

See: http://qwt.sourceforge.net/class_qwt_plot_layout.html#ad243b9afc9b5ce9530b500 dc35096d67

F.e. see the spectrogram example.

Uwe

Sorry, but I didn't find the html page. Is that the same with the doc about qwt-plot-layout in the 6.0 qwt package?