.TH "QwtPlotSvgItem" 3 "Mon Aug 1 2011" "Version 5.2.2" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtPlotSvgItem \- 
.PP
A plot item, which displays data in Scalable Vector Graphics (SVG) format.  

.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_plot_svgitem.h>\fP
.PP
Inherits \fBQwtPlotItem\fP.
.SS "Public Types"

.in +1c
.ti -1c
.RI "enum \fBItemAttribute\fP { \fBLegend\fP =  1, \fBAutoScale\fP =  2 }"
.br
.ti -1c
.RI "enum \fBRenderHint\fP { \fBRenderAntialiased\fP =  1 }"
.br
.ti -1c
.RI "enum \fBRttiValues\fP { \fBRtti_PlotItem\fP =  0, \fBRtti_PlotGrid\fP, \fBRtti_PlotScale\fP, \fBRtti_PlotMarker\fP, \fBRtti_PlotCurve\fP, \fBRtti_PlotHistogram\fP, \fBRtti_PlotSpectrogram\fP, \fBRtti_PlotSVG\fP, \fBRtti_PlotUserItem\fP =  1000 }"
.br
.in -1c
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "void \fBattach\fP (\fBQwtPlot\fP *plot)"
.br
.ti -1c
.RI "virtual QwtDoubleRect \fBboundingRect\fP () const "
.br
.ti -1c
.RI "void \fBdetach\fP ()"
.br
.ti -1c
.RI "virtual void \fBdraw\fP (QPainter *p, const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QRect &rect) const "
.br
.ti -1c
.RI "void \fBhide\fP ()"
.br
.ti -1c
.RI "QwtDoubleRect \fBinvTransform\fP (const \fBQwtScaleMap\fP &, const \fBQwtScaleMap\fP &, const QRect &) const "
.br
.ti -1c
.RI "bool \fBisVisible\fP () const "
.br
.ti -1c
.RI "virtual void \fBitemChanged\fP ()"
.br
.ti -1c
.RI "virtual QWidget * \fBlegendItem\fP () const "
.br
.ti -1c
.RI "bool \fBloadData\fP (const QwtDoubleRect &, const QByteArray &)"
.br
.ti -1c
.RI "bool \fBloadFile\fP (const QwtDoubleRect &, const QString &fileName)"
.br
.ti -1c
.RI "QRect \fBpaintRect\fP (const \fBQwtScaleMap\fP &, const \fBQwtScaleMap\fP &) const "
.br
.ti -1c
.RI "\fBQwtPlot\fP * \fBplot\fP () const "
.br
.ti -1c
.RI "\fBQwtPlotSvgItem\fP (const \fBQwtText\fP &title)"
.br
.ti -1c
.RI "\fBQwtPlotSvgItem\fP (const QString &title=QString::null)"
.br
.ti -1c
.RI "virtual int \fBrtti\fP () const "
.br
.ti -1c
.RI "QwtDoubleRect \fBscaleRect\fP (const \fBQwtScaleMap\fP &, const \fBQwtScaleMap\fP &) const "
.br
.ti -1c
.RI "void \fBsetAxis\fP (int xAxis, int yAxis)"
.br
.ti -1c
.RI "void \fBsetItemAttribute\fP (\fBItemAttribute\fP, bool on=true)"
.br
.ti -1c
.RI "void \fBsetRenderHint\fP (\fBRenderHint\fP, bool on=true)"
.br
.ti -1c
.RI "void \fBsetTitle\fP (const QString &title)"
.br
.ti -1c
.RI "void \fBsetTitle\fP (const \fBQwtText\fP &title)"
.br
.ti -1c
.RI "virtual void \fBsetVisible\fP (bool)"
.br
.ti -1c
.RI "void \fBsetXAxis\fP (int axis)"
.br
.ti -1c
.RI "void \fBsetYAxis\fP (int axis)"
.br
.ti -1c
.RI "void \fBsetZ\fP (double z)"
.br
.ti -1c
.RI "void \fBshow\fP ()"
.br
.ti -1c
.RI "bool \fBtestItemAttribute\fP (\fBItemAttribute\fP) const "
.br
.ti -1c
.RI "bool \fBtestRenderHint\fP (\fBRenderHint\fP) const "
.br
.ti -1c
.RI "const \fBQwtText\fP & \fBtitle\fP () const "
.br
.ti -1c
.RI "QRect \fBtransform\fP (const \fBQwtScaleMap\fP &, const \fBQwtScaleMap\fP &, const QwtDoubleRect &) const "
.br
.ti -1c
.RI "virtual void \fBupdateLegend\fP (\fBQwtLegend\fP *) const "
.br
.ti -1c
.RI "virtual void \fBupdateScaleDiv\fP (const \fBQwtScaleDiv\fP &, const \fBQwtScaleDiv\fP &)"
.br
.ti -1c
.RI "int \fBxAxis\fP () const "
.br
.ti -1c
.RI "int \fByAxis\fP () const "
.br
.ti -1c
.RI "double \fBz\fP () const "
.br
.ti -1c
.RI "virtual \fB~QwtPlotSvgItem\fP ()"
.br
.in -1c
.SS "Protected Member Functions"

.in +1c
.ti -1c
.RI "void \fBrender\fP (QPainter *painter, const QwtDoubleRect &viewBox, const QRect &rect) const "
.br
.ti -1c
.RI "QwtDoubleRect \fBviewBox\fP (const QwtDoubleRect &area) const "
.br
.in -1c
.SH "Detailed Description"
.PP 
A plot item, which displays data in Scalable Vector Graphics (SVG) format. 

SVG images are often used to display maps 
.SH "Member Enumeration Documentation"
.PP 
.SS "enum \fBQwtPlotItem::ItemAttribute\fP\fC [inherited]\fP"Plot Item Attributes
.PP
.IP "\(bu" 2
Legend
.br
 The item is represented on the legend.
.IP "\(bu" 2
AutoScale 
.br
 The \fBboundingRect()\fP of the item is included in the autoscaling calculation.
.PP
.PP
\fBSee also:\fP
.RS 4
\fBsetItemAttribute()\fP, \fBtestItemAttribute()\fP 
.RE
.PP

.SS "enum \fBQwtPlotItem::RenderHint\fP\fC [inherited]\fP"
.PP
Render hints. 
.SS "enum \fBQwtPlotItem::RttiValues\fP\fC [inherited]\fP"
.PP
Runtime type information. RttiValues is used to cast plot items, without having to enable runtime type information of the compiler. 
.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtPlotSvgItem::QwtPlotSvgItem (const QString &title = \fCQString::null\fP)\fC [explicit]\fP"
.PP
Constructor. Sets the following item attributes:
.IP "\(bu" 2
QwtPlotItem::AutoScale: true
.IP "\(bu" 2
QwtPlotItem::Legend: false
.PP
.PP
\fBParameters:\fP
.RS 4
\fItitle\fP Title 
.RE
.PP

.SS "QwtPlotSvgItem::QwtPlotSvgItem (const \fBQwtText\fP &title)\fC [explicit]\fP"
.PP
Constructor. Sets the following item attributes:
.IP "\(bu" 2
QwtPlotItem::AutoScale: true
.IP "\(bu" 2
QwtPlotItem::Legend: false
.PP
.PP
\fBParameters:\fP
.RS 4
\fItitle\fP Title 
.RE
.PP

.SS "QwtPlotSvgItem::~QwtPlotSvgItem ()\fC [virtual]\fP"
.PP
Destructor. 
.SH "Member Function Documentation"
.PP 
.SS "void QwtPlotItem::attach (\fBQwtPlot\fP *plot)\fC [inherited]\fP"
.PP
Attach the item to a plot. This method will attach a \fBQwtPlotItem\fP to the \fBQwtPlot\fP argument. It will first detach the \fBQwtPlotItem\fP from any plot from a previous call to attach (if necessary). If a NULL argument is passed, it will detach from any \fBQwtPlot\fP it was attached to.
.PP
\fBParameters:\fP
.RS 4
\fIplot\fP Plot widget 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlotItem::detach()\fP 
.RE
.PP

.SS "QwtDoubleRect QwtPlotSvgItem::boundingRect () const\fC [virtual]\fP"
.PP
Bounding rect of the item. 
.PP
Reimplemented from \fBQwtPlotItem\fP.
.SS "void QwtPlotItem::detach ()\fC [inline, inherited]\fP"
.PP
This method detaches a \fBQwtPlotItem\fP from any \fBQwtPlot\fP it has been associated with. \fBdetach()\fP is equivalent to calling attach( NULL ) 
.PP
\fBSee also:\fP
.RS 4
\fBattach( QwtPlot* plot )\fP 
.RE
.PP

.SS "void QwtPlotSvgItem::draw (QPainter *painter, const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QRect &canvasRect) const\fC [virtual]\fP"Draw the SVG item
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.br
\fIxMap\fP X-Scale Map 
.br
\fIyMap\fP Y-Scale Map 
.br
\fIcanvasRect\fP Contents rect of the plot canvas 
.RE
.PP

.PP
Implements \fBQwtPlotItem\fP.
.SS "void QwtPlotItem::hide ()\fC [inherited]\fP"
.PP
Hide the item. 
.SS "QwtDoubleRect QwtPlotItem::invTransform (const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QRect &rect) const\fC [inherited]\fP"Transform a rectangle from paint to scale coordinates
.PP
\fBParameters:\fP
.RS 4
\fIxMap\fP X map 
.br
\fIyMap\fP Y map 
.br
\fIrect\fP Rectangle in paint coordinates 
.RE
.PP
\fBReturns:\fP
.RS 4
Rectangle in scale coordinates 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtransform()\fP 
.RE
.PP

.SS "bool QwtPlotItem::isVisible () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
true if visible 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetVisible()\fP, \fBshow()\fP, \fBhide()\fP 
.RE
.PP

.SS "void QwtPlotItem::itemChanged ()\fC [virtual, inherited]\fP"Update the legend and call \fBQwtPlot::autoRefresh\fP for the parent plot.
.PP
\fBSee also:\fP
.RS 4
\fBupdateLegend()\fP 
.RE
.PP

.SS "QWidget * QwtPlotItem::legendItem () const\fC [virtual, inherited]\fP"
.PP
Allocate the widget that represents the item on the legend. The default implementation is made for \fBQwtPlotCurve\fP and returns a QwtLegendItem(), but an item could be represented by any type of widget, by overloading \fBlegendItem()\fP and \fBupdateLegend()\fP.
.PP
\fBReturns:\fP
.RS 4
QwtLegendItem() 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBupdateLegend()\fP QwtLegend() 
.RE
.PP

.PP
Implements \fBQwtLegendItemManager\fP.
.SS "bool QwtPlotSvgItem::loadData (const QwtDoubleRect &rect, const QByteArray &data)"Load SVG data
.PP
\fBParameters:\fP
.RS 4
\fIrect\fP Bounding rectangle 
.br
\fIdata\fP in SVG format
.RE
.PP
\fBReturns:\fP
.RS 4
true, if the SVG data could be loaded 
.RE
.PP

.SS "bool QwtPlotSvgItem::loadFile (const QwtDoubleRect &rect, const QString &fileName)"Load a SVG file
.PP
\fBParameters:\fP
.RS 4
\fIrect\fP Bounding rectangle 
.br
\fIfileName\fP SVG file name
.RE
.PP
\fBReturns:\fP
.RS 4
true, if the SVG file could be loaded 
.RE
.PP

.SS "QRect QwtPlotItem::paintRect (const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap) const\fC [inherited]\fP"
.PP
Calculate the bounding paint rect of 2 maps. \fBParameters:\fP
.RS 4
\fIxMap\fP X map 
.br
\fIyMap\fP X map
.RE
.PP
\fBReturns:\fP
.RS 4
Bounding rect of the scale maps 
.RE
.PP

.SS "\fBQwtPlot\fP * QwtPlotItem::plot () const\fC [inherited]\fP"
.PP
Return attached plot. 
.SS "void QwtPlotSvgItem::render (QPainter *painter, const QwtDoubleRect &viewBox, const QRect &rect) const\fC [protected]\fP"Render the SVG data
.PP
\fBParameters:\fP
.RS 4
\fIpainter\fP Painter 
.br
\fIviewBox\fP View Box, see QSvgRenderer::viewBox 
.br
\fIrect\fP Traget rectangle on the paint device 
.RE
.PP

.SS "int QwtPlotSvgItem::rtti () const\fC [virtual]\fP"\fBReturns:\fP
.RS 4
QwtPlotItem::Rtti_PlotSVG 
.RE
.PP

.PP
Reimplemented from \fBQwtPlotItem\fP.
.SS "QwtDoubleRect QwtPlotItem::scaleRect (const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap) const\fC [inherited]\fP"
.PP
Calculate the bounding scale rect of 2 maps. \fBParameters:\fP
.RS 4
\fIxMap\fP X map 
.br
\fIyMap\fP X map
.RE
.PP
\fBReturns:\fP
.RS 4
Bounding rect of the scale maps 
.RE
.PP

.SS "void QwtPlotItem::setAxis (intxAxis, intyAxis)\fC [inherited]\fP"Set X and Y axis
.PP
The item will painted according to the coordinates its Axes.
.PP
\fBParameters:\fP
.RS 4
\fIxAxis\fP X Axis 
.br
\fIyAxis\fP Y Axis
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetXAxis()\fP, \fBsetYAxis()\fP, \fBxAxis()\fP, \fByAxis()\fP 
.RE
.PP

.SS "void QwtPlotItem::setItemAttribute (\fBItemAttribute\fPattribute, boolon = \fCtrue\fP)\fC [inherited]\fP"Toggle an item attribute
.PP
\fBParameters:\fP
.RS 4
\fIattribute\fP Attribute type 
.br
\fIon\fP true/false
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtestItemAttribute()\fP, \fBItemAttribute\fP 
.RE
.PP

.SS "void QwtPlotItem::setRenderHint (\fBRenderHint\fPhint, boolon = \fCtrue\fP)\fC [inherited]\fP"Toggle an render hint
.PP
\fBParameters:\fP
.RS 4
\fIhint\fP Render hint 
.br
\fIon\fP true/false
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtestRenderHint()\fP, \fBRenderHint\fP 
.RE
.PP

.SS "void QwtPlotItem::setTitle (const QString &title)\fC [inherited]\fP"Set a new title
.PP
\fBParameters:\fP
.RS 4
\fItitle\fP Title 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtitle()\fP 
.RE
.PP

.SS "void QwtPlotItem::setTitle (const \fBQwtText\fP &title)\fC [inherited]\fP"Set a new title
.PP
\fBParameters:\fP
.RS 4
\fItitle\fP Title 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBtitle()\fP 
.RE
.PP

.SS "void QwtPlotItem::setVisible (boolon)\fC [virtual, inherited]\fP"Show/Hide the item
.PP
\fBParameters:\fP
.RS 4
\fIon\fP Show if true, otherwise hide 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBisVisible()\fP, \fBshow()\fP, \fBhide()\fP 
.RE
.PP

.SS "void QwtPlotItem::setXAxis (intaxis)\fC [inherited]\fP"Set the X axis
.PP
The item will painted according to the coordinates its Axes.
.PP
\fBParameters:\fP
.RS 4
\fIaxis\fP X Axis 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetAxis()\fP, \fBsetYAxis()\fP, \fBxAxis()\fP 
.RE
.PP

.SS "void QwtPlotItem::setYAxis (intaxis)\fC [inherited]\fP"Set the Y axis
.PP
The item will painted according to the coordinates its Axes.
.PP
\fBParameters:\fP
.RS 4
\fIaxis\fP Y Axis 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetAxis()\fP, \fBsetXAxis()\fP, \fByAxis()\fP 
.RE
.PP

.SS "void QwtPlotItem::setZ (doublez)\fC [inherited]\fP"
.PP
Set the z value. Plot items are painted in increasing z-order.
.PP
\fBParameters:\fP
.RS 4
\fIz\fP Z-value 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBz()\fP, \fBQwtPlotDict::itemList()\fP 
.RE
.PP

.SS "void QwtPlotItem::show ()\fC [inherited]\fP"
.PP
Show the item. 
.SS "bool QwtPlotItem::testItemAttribute (\fBItemAttribute\fPattribute) const\fC [inherited]\fP"Test an item attribute
.PP
\fBParameters:\fP
.RS 4
\fIattribute\fP Attribute type 
.RE
.PP
\fBReturns:\fP
.RS 4
true/false 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetItemAttribute()\fP, \fBItemAttribute\fP 
.RE
.PP

.SS "bool QwtPlotItem::testRenderHint (\fBRenderHint\fPhint) const\fC [inherited]\fP"Test a render hint
.PP
\fBParameters:\fP
.RS 4
\fIhint\fP Render hint 
.RE
.PP
\fBReturns:\fP
.RS 4
true/false 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetRenderHint()\fP, \fBRenderHint\fP 
.RE
.PP

.SS "const \fBQwtText\fP & QwtPlotItem::title () const\fC [inherited]\fP"\fBReturns:\fP
.RS 4
Title of the item 
.RE
.PP
\fBSee also:\fP
.RS 4
\fBsetTitle()\fP 
.RE
.PP

.SS "QRect QwtPlotItem::transform (const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QwtDoubleRect &rect) const\fC [inherited]\fP"Transform a rectangle
.PP
\fBParameters:\fP
.RS 4
\fIxMap\fP X map 
.br
\fIyMap\fP Y map 
.br
\fIrect\fP Rectangle in scale coordinates 
.RE
.PP
\fBReturns:\fP
.RS 4
Rectangle in paint coordinates
.RE
.PP
\fBSee also:\fP
.RS 4
\fBinvTransform()\fP 
.RE
.PP

.SS "void QwtPlotItem::updateLegend (\fBQwtLegend\fP *legend) const\fC [virtual, inherited]\fP"
.PP
Update the widget that represents the item on the legend. \fBupdateLegend()\fP is called from \fBitemChanged()\fP to adopt the widget representing the item on the legend to its new configuration.
.PP
The default implementation is made for \fBQwtPlotCurve\fP and updates a QwtLegendItem(), but an item could be represented by any type of widget, by overloading \fBlegendItem()\fP and \fBupdateLegend()\fP.
.PP
\fBParameters:\fP
.RS 4
\fIlegend\fP Legend
.RE
.PP
\fBSee also:\fP
.RS 4
\fBlegendItem()\fP, \fBitemChanged()\fP, QwtLegend() 
.RE
.PP

.PP
Implements \fBQwtLegendItemManager\fP.
.PP
Reimplemented in \fBQwtPlotCurve\fP.
.SS "void QwtPlotItem::updateScaleDiv (const \fBQwtScaleDiv\fP &, const \fBQwtScaleDiv\fP &)\fC [virtual, inherited]\fP"
.PP
Update the item to changes of the axes scale division. Update the item, when the axes of plot have changed. The default implementation does nothing, but items that depend on the scale division (like QwtPlotGrid()) have to reimplement \fBupdateScaleDiv()\fP
.PP
\fBParameters:\fP
.RS 4
\fIxScaleDiv\fP Scale division of the x-axis 
.br
\fIyScaleDiv\fP Scale division of the y-axis
.RE
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlot::updateAxes()\fP 
.RE
.PP

.PP
Reimplemented in \fBQwtPlotGrid\fP, and \fBQwtPlotScaleItem\fP.
.SS "QwtDoubleRect QwtPlotSvgItem::viewBox (const QwtDoubleRect &rect) const\fC [protected]\fP"Calculate the viewBox from an rect and \fBboundingRect()\fP.
.PP
\fBParameters:\fP
.RS 4
\fIrect\fP Rectangle in scale coordinates 
.RE
.PP
\fBReturns:\fP
.RS 4
viewBox View Box, see QSvgRenderer::viewBox 
.RE
.PP

.SS "int QwtPlotItem::xAxis () const\fC [inherited]\fP"
.PP
Return xAxis. 
.SS "int QwtPlotItem::yAxis () const\fC [inherited]\fP"
.PP
Return yAxis. 
.SS "double QwtPlotItem::z () const\fC [inherited]\fP"Plot items are painted in increasing z-order.
.PP
\fBReturns:\fP
.RS 4
\fBsetZ()\fP, \fBQwtPlotDict::itemList()\fP 
.RE
.PP


.SH "Author"
.PP 
Generated automatically by Doxygen for Qwt User's Guide from the source code.