QwtPlotSvgItem - A plot item, which displays data in Scalable Vector

NAME

       QwtPlotSvgItem - A plot item, which displays data in Scalable Vector
       Graphics (SVG) format.

SYNOPSIS

       #include <qwt_plot_svgitem.h>

       Inherits QwtPlotItem.

   Public Member Functions
       QwtPlotSvgItem (const QString &title=QString::null)
       QwtPlotSvgItem (const QwtText &title)
       virtual ~QwtPlotSvgItem ()
       bool loadFile (const QwtDoubleRect &, const QString &fileName)
       bool loadData (const QwtDoubleRect &, const QByteArray &)
       virtual QwtDoubleRect boundingRect () const
       virtual void draw (QPainter *p, const QwtScaleMap &xMap, const
           QwtScaleMap &yMap, const QRect &rect) const
       virtual int rtti () const

   Protected Member Functions
       void render (QPainter *painter, const QwtDoubleRect &viewBox, const
           QRect &rect) const
       QwtDoubleRect viewBox (const QwtDoubleRect &area) const

Detailed Description

       A plot item, which displays data in Scalable Vector Graphics (SVG)
       format.

       SVG images are often used to display maps

Constructor & Destructor Documentation

   QwtPlotSvgItem::QwtPlotSvgItem (const QString & title = QString::null)
       [explicit]
       Constructor.

       Sets the following item attributes:

       · QwtPlotItem::AutoScale: true

       · QwtPlotItem::Legend: false

       Parameters:
           title Title

   QwtPlotSvgItem::QwtPlotSvgItem (const QwtText & title) [explicit]
       Constructor.

       Sets the following item attributes:

       · QwtPlotItem::AutoScale: true

       · QwtPlotItem::Legend: false

       Parameters:
           title Title

   QwtPlotSvgItem::~QwtPlotSvgItem () [virtual]
       Destructor.

Member Function Documentation

   QwtDoubleRect QwtPlotSvgItem::boundingRect () const [virtual]
       Bounding rect of the item.

       Reimplemented from QwtPlotItem.

   void QwtPlotSvgItem::draw (QPainter * painter, const QwtScaleMap & xMap,
       const QwtScaleMap & yMap, const QRect & canvasRect) const [virtual]
       Draw the SVG item

       Parameters:
           painter Painter
           xMap X-Scale Map
           yMap Y-Scale Map
           canvasRect Contents rect of the plot canvas

       Implements QwtPlotItem.

   bool QwtPlotSvgItem::loadData (const QwtDoubleRect & rect, const QByteArray
       & data)
       Load SVG data

       Parameters:
           rect Bounding rectangle
           data in SVG format

       Returns:
           true, if the SVG data could be loaded

   bool QwtPlotSvgItem::loadFile (const QwtDoubleRect & rect, const QString &
       fileName)
       Load a SVG file

       Parameters:
           rect Bounding rectangle
           fileName SVG file name

       Returns:
           true, if the SVG file could be loaded

   void QwtPlotSvgItem::render (QPainter * painter, const QwtDoubleRect &
       viewBox, const QRect & rect) const [protected]
       Render the SVG data

       Parameters:
           painter Painter
           viewBox View Box, see QSvgRenderer::viewBox
           rect Traget rectangle on the paint device

   int QwtPlotSvgItem::rtti () const [virtual]
       Returns:
           QwtPlotItem::Rtti_PlotSVG

       Reimplemented from QwtPlotItem.

   QwtDoubleRect QwtPlotSvgItem::viewBox (const QwtDoubleRect & rect) const
       [protected]
       Calculate the viewBox from an rect and boundingRect().

       Parameters:
           rect Rectangle in scale coordinates

       Returns:
           viewBox View Box, see QSvgRenderer::viewBox

Author

       Generated automatically by Doxygen for Qwt User’s Guide from the source
       code.