plotting just the points not an actual curve

[Uwe]

Increase the width of your curve pen or use symbols.

Uwe

[hml]

Thanks. I do this:

QwtPlotCurve* pc = new QwtPlotCurve;
  pc->setStyle(QwtPlotCurve::Dots);
	QPen* pen = new QPen( pc->pen() );
	pen->setWidth( pen->width()*4 );
  pc->setPen(*pen);

QwtPlotCurve* pc = new QwtPlotCurve;
  pc->setStyle(QwtPlotCurve::Dots);
	QPen* pen = new QPen( pc->pen() );
	pen->setWidth( pen->width()*4 );
  pc->setPen(*pen);

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but the dots look just as small as before,

is this what you meant?

regards,

[Uwe]

0 * 4 = 0 !

Uwe

[hml]

I've tried with different numbers of pixels: 4 8 16 256
pen->setWidth( 4 ); // and 8 and 16 and 256
I don't see the dots anymore at all.

regards,