Axis with more labels

[rakkar]

Right now the two axes for my qwtPlot shows 6 labels, 0, 200, 400, 600, 800, and 1000. I want to make it show 11 instead, that is 0, 100, 200, 300, etc.

I tried this, but it doesn't work

const QwtScaleDiv *scaleDivHorizontal = qwtPlot->axisScaleDiv(QwtPlot::xBottom);
	const QwtScaleDiv *scaleDivVertical = qwtPlot->axisScaleDiv(QwtPlot::yLeft);
	double horizontalLowerBound=scaleDivHorizontal->lowerBound();
	double horizontalUpperBound=scaleDivHorizontal->upperBound();
	double verticalLowerBound=scaleDivVertical->lowerBound();
	double verticalUpperBound=scaleDivVertical->upperBound();
	double horizontalStepSize, verticalStepSize;
	qwtPlot->axisScaleEngine(QwtPlot::xBottom)->autoScale(11,horizontalLowerBound,horizontalUpperBound,horizontalStepSize);
	qwtPlot->axisScaleEngine(QwtPlot::yLeft)->autoScale(11,verticalLowerBound,verticalUpperBound,verticalStepSize);

const QwtScaleDiv *scaleDivHorizontal = qwtPlot->axisScaleDiv(QwtPlot::xBottom);
	const QwtScaleDiv *scaleDivVertical = qwtPlot->axisScaleDiv(QwtPlot::yLeft);
	double horizontalLowerBound=scaleDivHorizontal->lowerBound();
	double horizontalUpperBound=scaleDivHorizontal->upperBound();
	double verticalLowerBound=scaleDivVertical->lowerBound();
	double verticalUpperBound=scaleDivVertical->upperBound();
	double horizontalStepSize, verticalStepSize;
	qwtPlot->axisScaleEngine(QwtPlot::xBottom)->autoScale(11,horizontalLowerBound,horizontalUpperBound,horizontalStepSize);
	qwtPlot->axisScaleEngine(QwtPlot::yLeft)->autoScale(11,verticalLowerBound,verticalUpperBound,verticalStepSize);

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Any help would be appreciated.

[Uwe]

plot-setAxisMaxMajor(..., 10);

plot-setAxisMaxMajor(..., 10);

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Use QwtPlot::setAxisScaleDiv() is you need to assign your ticks explicitely.

Uwe