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

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 QRectF &, const QString &fileName)
 
bool loadData (const QRectF &, const QByteArray &)
 
virtual QRectF boundingRect () const
 
virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &rect) const
 
virtual int rtti () const
 

Protected Member Functions


const QSvgRenderer & renderer () const
 
QSvgRenderer & renderer ()
 
void render (QPainter *painter, const QRectF &viewBox, const QRectF &rect) const
 
QRectF viewBox (const QRectF &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

QRectF QwtPlotSvgItem::boundingRect () const [virtual]

Bounding rect of the item.
Reimplemented from QwtPlotItem.

void QwtPlotSvgItem::draw (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &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 QRectF &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 QRectF &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 QRectF &viewBox, const QRectF &rect) const [protected] Render the SVG data

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

QSvgRenderer & QwtPlotSvgItem::renderer () [protected] Returns:

Renderer used to render the SVG data
 

const QSvgRenderer & QwtPlotSvgItem::renderer () const [protected] Returns:

Renderer used to render the SVG data
 

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

QwtPlotItem::Rtti_PlotSVG
 
Reimplemented from QwtPlotItem.

QRectF QwtPlotSvgItem::viewBox (const QRectF &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.
Fri Apr 15 2011 Version 6.0.0