QwtPlotSvgItem - A plot item, which displays data in Scalable Vector Graphics (SVG) format.
NAME SYNOPSIS Public Member Functions Additional Inherited Members Detailed Description Constructor & Destructor Documentation QwtPlotSvgItem::QwtPlotSvgItem (const QString & title = QString())[explicit] QwtPlotSvgItem::QwtPlotSvgItem (const QwtText & title) [explicit] QwtPlotSvgItem::˜QwtPlotSvgItem () [virtual] Member Function Documentation bool QwtPlotSvgItem::loadData (const QRectF & rect, const QByteArray &data) bool QwtPlotSvgItem::loadFile (const QRectF & rect, const QString &fileName) AuthorNAME
QwtPlotSvgItem − A plot item, which displays data in Scalable Vector Graphics (SVG) format.
SYNOPSIS
#include <qwt_plot_svgitem.h>
Inherits QwtPlotGraphicItem.
Public Member Functions
QwtPlotSvgItem
(const QString &title=QString())
Constructor.
QwtPlotSvgItem (const QwtText &title)
Constructor.
virtual ˜QwtPlotSvgItem ()
Destructor.
bool loadFile (const QRectF &, const QString
&fileName)
bool loadData (const QRectF &, const QByteArray
&)
Public Member Functions inherited from QwtPlotGraphicItem
QwtPlotGraphicItem
(const QString &title=QString())
Constructor.
QwtPlotGraphicItem (const QwtText
&title)
Constructor.
virtual ˜QwtPlotGraphicItem ()
Destructor.
void setGraphic (const QRectF &rect, const
QwtGraphic &)
QwtGraphic graphic () const
virtual QRectF boundingRect () const override
Bounding rectangle of the item.
virtual void draw (QPainter *, const
QwtScaleMap &xMap, const QwtScaleMap
&yMap, const QRectF &canvasRect) const override
virtual int rtti () const override
Public Member Functions inherited from QwtPlotItem
QwtPlotItem ()
QwtPlotItem (const QString &title)
QwtPlotItem (const QwtText &title)
virtual ˜QwtPlotItem ()
Destroy the QwtPlotItem.
void attach (QwtPlot *plot)
Attach the item to a plot.
void detach ()
This method detaches a QwtPlotItem from any
QwtPlot it has been associated with.
QwtPlot * plot () const
Return attached plot.
void setTitle (const QString &title)
void setTitle (const QwtText
&title)
const QwtText & title () const
void setItemAttribute (ItemAttribute, bool
on=true)
bool testItemAttribute (ItemAttribute) const
void setItemInterest (ItemInterest, bool
on=true)
bool testItemInterest (ItemInterest) const
void setRenderHint (RenderHint, bool on=true)
bool testRenderHint (RenderHint) const
void setRenderThreadCount (uint numThreads)
uint renderThreadCount () const
void setLegendIconSize (const QSize &)
QSize legendIconSize () const
double z () const
void setZ (double z)
Set the z value.
void show ()
Show the item.
void hide ()
Hide the item.
virtual void setVisible (bool)
bool isVisible () const
void setAxes (QwtAxisId xAxis, QwtAxisId
yAxis)
void setXAxis (QwtAxisId)
QwtAxisId xAxis () const
Return xAxis.
void setYAxis (QwtAxisId)
QwtAxisId yAxis () const
Return yAxis.
virtual void itemChanged ()
virtual void legendChanged ()
virtual void getCanvasMarginHint (const
QwtScaleMap &xMap, const QwtScaleMap
&yMap, const QRectF &canvasRect, double &left,
double &top, double &right, double &bottom)
const
Calculate a hint for the canvas margin.
virtual void updateScaleDiv (const QwtScaleDiv
&, const QwtScaleDiv &)
Update the item to changes of the axes scale division.
virtual void updateLegend (const QwtPlotItem
*, const QList< QwtLegendData > &)
Update the item to changes of the legend info.
QRectF scaleRect (const QwtScaleMap &,
const QwtScaleMap &) const
Calculate the bounding scale rectangle of 2 maps.
QRectF paintRect (const QwtScaleMap &,
const QwtScaleMap &) const
Calculate the bounding paint rectangle of 2 maps.
virtual QList< QwtLegendData >
legendData () const
Return all information, that is needed to represent the item
on the legend.
virtual QwtGraphic legendIcon (int index, const
QSizeF &) const
Additional Inherited Members
Public Types inherited from QwtPlotItem
enum RttiValues {
Rtti_PlotItem = 0, Rtti_PlotGrid,
Rtti_PlotScale, Rtti_PlotLegend,
Rtti_PlotMarker, Rtti_PlotCurve,
Rtti_PlotSpectroCurve, Rtti_PlotIntervalCurve,
Rtti_PlotHistogram, Rtti_PlotSpectrogram,
Rtti_PlotGraphic, Rtti_PlotTradingCurve,
Rtti_PlotBarChart, Rtti_PlotMultiBarChart,
Rtti_PlotShape, Rtti_PlotTextLabel,
Rtti_PlotZone, Rtti_PlotVectorField,
Rtti_PlotUserItem = 1000 }
Runtime type information.
enum ItemAttribute { Legend = 0x01,
AutoScale = 0x02, Margins = 0x04 }
Plot Item Attributes.
enum ItemInterest { ScaleInterest = 0x01,
LegendInterest = 0x02 }
Plot Item Interests.
enum RenderHint { RenderAntialiased = 0x1 }
Render hints.
typedef QFlags< ItemAttribute >
ItemAttributes
typedef QFlags< ItemInterest >
ItemInterests
typedef QFlags< RenderHint >
RenderHints
Protected Member Functions inherited from QwtPlotItem
QwtGraphic defaultIcon
(const QBrush &, const QSizeF &) const
Return a default icon from a brush.
Detailed Description
A plot item, which displays data in Scalable Vector Graphics (SVG) format.
SVG images are often used to display maps
QwtPlotSvgItem is only a small convenience wrapper class for QwtPlotGraphicItem, that creates a QwtGraphic from SVG data.
Definition at line 28 of file qwt_plot_svgitem.h.
Constructor & Destructor Documentation
QwtPlotSvgItem::QwtPlotSvgItem (const QString & title = QString())[explicit]
Constructor.
Parameters
title Title
Definition at line 20 of file qwt_plot_svgitem.cpp.
QwtPlotSvgItem::QwtPlotSvgItem (const QwtText & title) [explicit]
Constructor.
Parameters
title Title
Definition at line 29 of file qwt_plot_svgitem.cpp.
QwtPlotSvgItem::˜QwtPlotSvgItem () [virtual]
Destructor.
Definition at line 35 of file qwt_plot_svgitem.cpp.
Member Function Documentation
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
Definition at line 74 of file qwt_plot_svgitem.cpp.
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
Definition at line 47 of file qwt_plot_svgitem.cpp.
Author
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