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QwtPlotSvgItem(3) Qwt User's Guide QwtPlotSvgItem(3)

NAME

QwtPlotSvgItem -

SYNOPSIS

#include <qwt_plot_svgitem.h>
Inherits QwtPlotItem.

Public Member Functions


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

Protected Member Functions


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

Additional Inherited Members

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

Member Function Documentation

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.
Tue Nov 20 2012 Version 5.2.3