QwtPlot Canvas Size Hint?

**Uwe** · 13th May 2010, 09:36

And if you are looking for a dynamic solution use QwtScaleDraw::extent() from all left axes to calculate the value for the minimum extent.

Uwe

**pihentagy** · 23rd February 2011, 22:46

In order to use extent(), one must know the currently used QFont and QPen.

Figuring out the QFont is easy:

Qt Code:

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self.plot.axisFont(axis)

self.plot.axisFont(axis)

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, but how can I figure out the QPen used?

**Uwe** · 24th February 2011, 07:15

**pihentagy** · 25th February 2011, 15:39

Thanks, but that seems qwt trunk version.
QwtScaleDraw::extent takes 2 parameters (as of http://qwt.sourceforge.net/class_qwt...6501cc5ff290c6), and I do not know from where to get the QPen.

**Uwe** · 25th February 2011, 16:57

Qt Code:

Switch view

QPen( Qt::color1, axisWidget(..)->penWidth() );

QPen( Qt::color1, axisWidget(..)->penWidth() );

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The color doesn't matter.

Uwe

Thread: QwtPlot Canvas Size Hint?