.TH "QwtPlotMarker" 3 "Mon Aug 1 2011" "Version 5.2.2" "Qwt User's Guide" \" -*- nroff -*- .ad l .nh .SH NAME QwtPlotMarker \- .PP A class for drawing markers. .SH SYNOPSIS .br .PP .PP \fC#include \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 \fBLineStyle\fP { \fBNoLine\fP, \fBHLine\fP, \fBVLine\fP, \fBCross\fP }" .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 &) 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 "\fBQwtText\fP \fBlabel\fP () const " .br .ti -1c .RI "Qt::Alignment \fBlabelAlignment\fP () const " .br .ti -1c .RI "Qt::Orientation \fBlabelOrientation\fP () const " .br .ti -1c .RI "virtual QWidget * \fBlegendItem\fP () const " .br .ti -1c .RI "const QPen & \fBlinePen\fP () const " .br .ti -1c .RI "\fBLineStyle\fP \fBlineStyle\fP () const " .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 "\fBQwtPlotMarker\fP ()" .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 \fBsetLabel\fP (const \fBQwtText\fP &)" .br .ti -1c .RI "void \fBsetLabelAlignment\fP (Qt::Alignment)" .br .ti -1c .RI "void \fBsetLabelOrientation\fP (Qt::Orientation)" .br .ti -1c .RI "void \fBsetLinePen\fP (const QPen &p)" .br .ti -1c .RI "void \fBsetLineStyle\fP (\fBLineStyle\fP st)" .br .ti -1c .RI "void \fBsetRenderHint\fP (\fBRenderHint\fP, bool on=true)" .br .ti -1c .RI "void \fBsetSpacing\fP (int)" .br .ti -1c .RI "void \fBsetSymbol\fP (const \fBQwtSymbol\fP &s)" .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 "void \fBsetValue\fP (double, double)" .br .ti -1c .RI "void \fBsetValue\fP (const QwtDoublePoint &)" .br .ti -1c .RI "virtual void \fBsetVisible\fP (bool)" .br .ti -1c .RI "void \fBsetXAxis\fP (int axis)" .br .ti -1c .RI "void \fBsetXValue\fP (double)" .br .ti -1c .RI "void \fBsetYAxis\fP (int axis)" .br .ti -1c .RI "void \fBsetYValue\fP (double)" .br .ti -1c .RI "void \fBsetZ\fP (double z)" .br .ti -1c .RI "void \fBshow\fP ()" .br .ti -1c .RI "int \fBspacing\fP () const " .br .ti -1c .RI "const \fBQwtSymbol\fP & \fBsymbol\fP () const " .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 "QwtDoublePoint \fBvalue\fP () const " .br .ti -1c .RI "int \fBxAxis\fP () const " .br .ti -1c .RI "double \fBxValue\fP () const " .br .ti -1c .RI "int \fByAxis\fP () const " .br .ti -1c .RI "double \fByValue\fP () const " .br .ti -1c .RI "double \fBz\fP () const " .br .ti -1c .RI "virtual \fB~QwtPlotMarker\fP ()" .br .in -1c .SS "Protected Member Functions" .in +1c .ti -1c .RI "void \fBdrawAt\fP (QPainter *, const QRect &, const QPoint &) const " .br .in -1c .SH "Detailed Description" .PP A class for drawing markers. A marker can be a horizontal line, a vertical line, a symbol, a label or any combination of them, which can be drawn around a center point inside a bounding rectangle. .PP The \fBQwtPlotMarker::setSymbol()\fP member assigns a symbol to the marker. The symbol is drawn at the specified point. .PP With \fBQwtPlotMarker::setLabel()\fP, a label can be assigned to the marker. The \fBQwtPlotMarker::setLabelAlignment()\fP member specifies where the label is drawn. All the Align*-constants in Qt::AlignmentFlags (see Qt documentation) are valid. The interpretation of the alignment depends on the marker's line style. The alignment refers to the center point of the marker, which means, for example, that the label would be printed left above the center point if the alignment was set to AlignLeft|AlignTop. .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 \fBQwtPlotMarker::LineStyle\fP"Line styles. .PP \fBSee also:\fP .RS 4 \fBsetLineStyle()\fP, \fBlineStyle()\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 "QwtPlotMarker::QwtPlotMarker ()\fC [explicit]\fP" .PP Sets alignment to Qt::AlignCenter, and style to NoLine. .SS "QwtPlotMarker::~QwtPlotMarker ()\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 QwtPlotMarker::boundingRect () const\fC [virtual]\fP"\fBReturns:\fP .RS 4 An invalid bounding rect: QwtDoubleRect(1.0, 1.0, \-2.0, \-2.0) .RE .PP .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 QwtPlotMarker::draw (QPainter *painter, const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QRect &canvasRect) const\fC [virtual]\fP"Draw the marker .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 canvas in painter coordinates .RE .PP .PP Implements \fBQwtPlotItem\fP. .SS "void QwtPlotMarker::drawAt (QPainter *painter, const QRect &canvasRect, const QPoint &pos) const\fC [protected]\fP"Draw the marker at a specific position .PP \fBParameters:\fP .RS 4 \fIpainter\fP Painter .br \fIcanvasRect\fP Contents rect of the canvas in painter coordinates .br \fIpos\fP Position of the marker in painter coordinates .RE .PP .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 "\fBQwtText\fP QwtPlotMarker::label () const"\fBReturns:\fP .RS 4 the label .RE .PP \fBSee also:\fP .RS 4 \fBsetLabel()\fP .RE .PP .SS "Qt::Alignment QwtPlotMarker::labelAlignment () const"\fBReturns:\fP .RS 4 the label alignment .RE .PP \fBSee also:\fP .RS 4 \fBsetLabelAlignment()\fP, \fBsetLabelOrientation()\fP .RE .PP .SS "Qt::Orientation QwtPlotMarker::labelOrientation () const"\fBReturns:\fP .RS 4 the label orientation .RE .PP \fBSee also:\fP .RS 4 \fBsetLabelOrientation()\fP, \fBlabelAlignment()\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 "const QPen & QwtPlotMarker::linePen () const"\fBReturns:\fP .RS 4 the line pen .RE .PP \fBSee also:\fP .RS 4 \fBsetLinePen()\fP .RE .PP .SS "\fBQwtPlotMarker::LineStyle\fP QwtPlotMarker::lineStyle () const"\fBReturns:\fP .RS 4 the line style .RE .PP \fBSee also:\fP .RS 4 For a description of line styles, see \fBQwtPlotMarker::setLineStyle()\fP .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 "int QwtPlotMarker::rtti () const\fC [virtual]\fP"\fBReturns:\fP .RS 4 QwtPlotItem::Rtti_PlotMarker .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 QwtPlotMarker::setLabel (const \fBQwtText\fP &label)" .PP Set the label. \fBParameters:\fP .RS 4 \fIlabel\fP label text .RE .PP \fBSee also:\fP .RS 4 \fBlabel()\fP .RE .PP .SS "void QwtPlotMarker::setLabelAlignment (Qt::Alignmentalign)" .PP Set the alignment of the label. In case of QwtPlotMarker::HLine the alignment is relative to the y position of the marker, but the horizontal flags correspond to the canvas rectangle. In case of QwtPlotMarker::VLine the alignment is relative to the x position of the marker, but the vertical flags correspond to the canvas rectangle. .PP In all other styles the alignment is relative to the marker's position. .PP \fBParameters:\fP .RS 4 \fIalign\fP Alignment. A combination of AlignTop, AlignBottom, AlignLeft, AlignRight, AlignCenter, AlgnHCenter, AlignVCenter. .RE .PP \fBSee also:\fP .RS 4 \fBlabelAlignment()\fP, \fBlabelOrientation()\fP .RE .PP .SS "void QwtPlotMarker::setLabelOrientation (Qt::Orientationorientation)" .PP Set the orientation of the label. When orientation is Qt::Vertical the label is rotated by 90.0 degrees ( from bottom to top ). .PP \fBParameters:\fP .RS 4 \fIorientation\fP Orientation of the label .RE .PP \fBSee also:\fP .RS 4 \fBlabelOrientation()\fP, \fBsetLabelAlignment()\fP .RE .PP .SS "void QwtPlotMarker::setLinePen (const QPen &pen)"Specify a pen for the line. .PP The width of non cosmetic pens is scaled according to the resolution of the paint device. .PP \fBParameters:\fP .RS 4 \fIpen\fP New pen .RE .PP \fBSee also:\fP .RS 4 \fBlinePen()\fP, \fBQwtPainter::scaledPen()\fP .RE .PP .SS "void QwtPlotMarker::setLineStyle (\fBQwtPlotMarker::LineStyle\fPst)" .PP Set the line style. \fBParameters:\fP .RS 4 \fIst\fP Line style. Can be one of QwtPlotMarker::NoLine, HLine, VLine or Cross .RE .PP \fBSee also:\fP .RS 4 \fBlineStyle()\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 QwtPlotMarker::setSpacing (intspacing)" .PP Set the spacing. When the label is not centered on the marker position, the spacing is the distance between the position and the label. .PP \fBParameters:\fP .RS 4 \fIspacing\fP Spacing .RE .PP \fBSee also:\fP .RS 4 \fBspacing()\fP, \fBsetLabelAlignment()\fP .RE .PP .SS "void QwtPlotMarker::setSymbol (const \fBQwtSymbol\fP &s)" .PP Assign a symbol. \fBParameters:\fP .RS 4 \fIs\fP New symbol .RE .PP \fBSee also:\fP .RS 4 \fBsymbol()\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 QwtPlotMarker::setValue (const QwtDoublePoint &pos)" .PP Set Value. .SS "void QwtPlotMarker::setValue (doublex, doubley)" .PP Set Value. .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 QwtPlotMarker::setXValue (doublex)" .PP Set X Value. .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 QwtPlotMarker::setYValue (doubley)" .PP Set Y Value. .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 "int QwtPlotMarker::spacing () const"\fBReturns:\fP .RS 4 the spacing .RE .PP \fBSee also:\fP .RS 4 \fBsetSpacing()\fP .RE .PP .SS "const \fBQwtSymbol\fP & QwtPlotMarker::symbol () const"\fBReturns:\fP .RS 4 the symbol .RE .PP \fBSee also:\fP .RS 4 \fBsetSymbol()\fP, \fBQwtSymbol\fP .RE .PP .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 "QwtDoublePoint QwtPlotMarker::value () const" .PP Return Value. .SS "int QwtPlotItem::xAxis () const\fC [inherited]\fP" .PP Return xAxis. .SS "double QwtPlotMarker::xValue () const" .PP Return x Value. .SS "int QwtPlotItem::yAxis () const\fC [inherited]\fP" .PP Return yAxis. .SS "double QwtPlotMarker::yValue () const" .PP Return y Value. .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.