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QwtPlotSvgItem

QwtPlotSvgItem

Section: C Library Functions (3) Updated: 22 Mar 2009
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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.


 

Index

NAME
SYNOPSIS
Public Member Functions
Protected Member Functions
Detailed Description
Constructor & Destructor Documentation
QwtPlotSvgItem::QwtPlotSvgItem (const QString & title = QString::null) [explicit]
QwtPlotSvgItem::QwtPlotSvgItem (const QwtText & title) [explicit]
QwtPlotSvgItem::~QwtPlotSvgItem () [virtual]
Member Function Documentation
QwtDoubleRect QwtPlotSvgItem::boundingRect () const [virtual]
void QwtPlotSvgItem::draw (QPainter * painter, const QwtScaleMap & xMap, const QwtScaleMap & yMap, const QRect & canvasRect) const [virtual]
bool QwtPlotSvgItem::loadData (const QwtDoubleRect & rect, const QByteArray & data)
bool QwtPlotSvgItem::loadFile (const QwtDoubleRect & rect, const QString & fileName)
void QwtPlotSvgItem::render (QPainter * painter, const QwtDoubleRect & viewBox, const QRect & rect) const [protected]
int QwtPlotSvgItem::rtti () const [virtual]
QwtDoubleRect QwtPlotSvgItem::viewBox (const QwtDoubleRect & rect) const [protected]
Author

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Time: 21:53:53 GMT, April 16, 2011