X axis tick label - font size

Hi All,

I would like to change the font size of the x axis tick label in the exmaple of "friedberg".

Any suggestion or advice would be really appreciated.

Use void QwtPlot::setAxisFont ( int axisId,const QFont & f ) to set axis font.
For different labels use your own QwtScaleDraw.
1. Inherit from QwtScaleDraw and overload the virtual function QwtText QwtScaleDraw::label(double v) const
2. Return the label with the type of font, size etc. from the function.
3. Use QwtPlot::setAxisScaleDraw to set the scale for the axis in Qwtplot inherited class constructor.

For axis font like said pkj use QwtPlot::setAxisFont( int axisId,const QFont & f ).

And for scale labels, use the same method as the title (it's more simple...):

Code:

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QwtText scaleLabel = QwtText("...");
scaleLabel.setFont(...);
plot->setAxisTitle(QwtPlot::yLeft, scaleLabel);

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Added after 6 minutes:

I have a question more general on Qwt font management:
Why Qwt does not use a relative font definition with the QApplication::font() ?
I think it's a more useful managment...

Quote:

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Originally Posted by Guiom

Why Qwt does not use a relative font definition with the QApplication::font() ?

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It does - Qwt widgets work exactly like any other widget how to find the font for drawing itsself.

But this doesn't work when you need more than one font in one widget ( f.e QwtScaleWidget needs 2 - or even more - different fonts for title and tick labels ) or the element is no widget at all.
But even a QLabel takes the widget font as default only, when no font is explicitely assigned - f.e embedded in rich text, where you could use different fonts for each letter.

Uwe

Quote:

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Originally Posted by Uwe

It does - Qwt widgets work exactly like any other widget how to find the font for drawing itsself.

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But in QwtPlot::initPlot the tilte is initialized with an absolute size...

Code:

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d_data->lblTitle->setFont( QFont( fontInfo().family(), 14, QFont::Bold ) );

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Same in QwtPlot::initAxesData()

Code:

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QFont fscl( fontInfo().family(), 10 );
QFont fttl( fontInfo().family(), 12, QFont::Bold )

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If my application is defined with a font size to 8, plot title, scale label and scales are very big !!

Ah o.k - now I got what you meant.

But whatever ( or no ) default setting is implemented - it will be overwritten in almost every application. Nobody wants to have the same fonts for titles and tick labels.
Taking this into count I agree it might be better to do a useless, but "logical" implementation instead of trying to please a minority.

Uwe