Exemplos de QwtDiMap::invTransform em C++ (Cpp)

Exemplo n.º 1

Arquivo: qwt_plot_picker.cpp Projeto: BackupTheBerlios/qtiplot-svn

/*!
    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())
    );
}

Exemplo n.º 2

Arquivo: qwt_plot_picker.cpp Projeto: BackupTheBerlios/qtiplot-svn

/*!
    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())
    );
}