/*!
Translate a point from pixel into plot coordinates
\return Point in plot coordinates
\sa QwtPlotPicker::transform()
*/
QwtDoublePoint QwtPlotPicker::invTransform(const QPoint &pos) const
{
QwtDiMap xMap = plot()->canvasMap(d_xAxis);
QwtDiMap yMap = plot()->canvasMap(d_yAxis);
return QwtDoublePoint(
xMap.invTransform(pos.x()),
yMap.invTransform(pos.y())
);
}
/*!
Translate a rectangle from pixel into plot coordinates
\return Rectangle in plot coordinates
\sa QwtPlotPicker::transform()
*/
QwtDoubleRect QwtPlotPicker::invTransform(const QRect &rect) const
{
QwtDiMap xMap = plot()->canvasMap(d_xAxis);
QwtDiMap yMap = plot()->canvasMap(d_yAxis);
return QwtDoubleRect(
xMap.invTransform(rect.left()),
xMap.invTransform(rect.right()),
yMap.invTransform(rect.top()),
yMap.invTransform(rect.bottom())
);
}