1. Manuals
  2. Tumbleweed
  3. qwt-devel
  4. QwtPlotSvgItem(3)

Scroll to navigation

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