sync plot grid w/ external scale widget

[Kevin Ching]

I have 2 QwtPlot objects on the same widget and both plot will use same x-axis (it has to be two different plot, not overlap on the same one). Both plots will not have x-axis displayed and an external QwtScaleWidget will display the x-axis. I have all this in a grid layout.


The issue I'm running into is:
- The QwtPlot grid tick does not line up with the QwtScaleWidget ticks.

void MyWidget::SyncScale ()
{
	xAxis->setScaleDiv(m_pQwtPlot1->axisScaleEngine(QwtPlot::xBottom)->transformation(),
					   m_pQwtPlot1->axisWidget(QwtPlot::xBottom)->scaleDraw()->scaleDiv());
	int start, end;
	m_pQwtPlot1->axisWidget(QwtPlot::xBottom)->getBorderDistHint(start, end);
	xAxis->setBorderDist(start, end);
 
}

void MyWidget::SyncScale ()
{
	xAxis->setScaleDiv(m_pQwtPlot1->axisScaleEngine(QwtPlot::xBottom)->transformation(),
					   m_pQwtPlot1->axisWidget(QwtPlot::xBottom)->scaleDraw()->scaleDiv());
	int start, end;
	m_pQwtPlot1->axisWidget(QwtPlot::xBottom)->getBorderDistHint(start, end);
	xAxis->setBorderDist(start, end);

}

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Any support/help are greatly appreciated!