.TH "QwtPlotZoneItem" 3 "Mon Dec 28 2020" "Version 6.1.6" "Qwt User's Guide" \" -*- nroff -*- .ad l .nh .SH NAME QwtPlotZoneItem \- A plot item, which displays a zone\&. .SH SYNOPSIS .br .PP .PP \fC#include \fP .PP Inherits \fBQwtPlotItem\fP\&. .SS "Public Member Functions" .in +1c .ti -1c .RI "\fBQwtPlotZoneItem\fP ()" .br .RI "Constructor\&. " .ti -1c .RI "virtual \fB~QwtPlotZoneItem\fP ()" .br .RI "Destructor\&. " .ti -1c .RI "virtual int \fBrtti\fP () const" .br .ti -1c .RI "void \fBsetOrientation\fP (Qt::Orientation)" .br .RI "Set the orientation of the zone\&. " .ti -1c .RI "Qt::Orientation \fBorientation\fP ()" .br .ti -1c .RI "void \fBsetInterval\fP (double min, double max)" .br .ti -1c .RI "void \fBsetInterval\fP (const \fBQwtInterval\fP &)" .br .ti -1c .RI "\fBQwtInterval\fP \fBinterval\fP () const" .br .ti -1c .RI "void \fBsetPen\fP (const QColor &, qreal width=0\&.0, Qt::PenStyle=Qt::SolidLine)" .br .ti -1c .RI "void \fBsetPen\fP (const QPen &)" .br .RI "Assign a pen\&. " .ti -1c .RI "const QPen & \fBpen\fP () const" .br .ti -1c .RI "void \fBsetBrush\fP (const QBrush &)" .br .RI "Assign a brush\&. " .ti -1c .RI "const QBrush & \fBbrush\fP () const" .br .ti -1c .RI "virtual void \fBdraw\fP (QPainter *, const \fBQwtScaleMap\fP &, const \fBQwtScaleMap\fP &, const QRectF &) const" .br .ti -1c .RI "virtual QRectF \fBboundingRect\fP () const" .br .in -1c .SS "Additional Inherited Members" .SH "Detailed Description" .PP A plot item, which displays a zone\&. A horizontal zone highlights an interval of the y axis - a vertical zone an interval of the x axis - and is unbounded in the opposite direction\&. It is filled with a brush and its border lines are optionally displayed with a pen\&. .PP \fBNote\fP .RS 4 For displaying an area that is bounded for x and y coordinates use \fBQwtPlotShapeItem\fP .RE .PP .SH "Constructor & Destructor Documentation" .PP .SS "QwtPlotZoneItem::QwtPlotZoneItem ()\fC [explicit]\fP" .PP Constructor\&. Initializes the zone with no pen and a semi transparent gray brush .PP Sets the following item attributes: .PP .IP "\(bu" 2 \fBQwtPlotItem::AutoScale\fP: false .IP "\(bu" 2 \fBQwtPlotItem::Legend\fP: false .PP .PP The z value is initialized by 5 .PP \fBSee also\fP .RS 4 \fBQwtPlotItem::setItemAttribute()\fP, \fBQwtPlotItem::setZ()\fP .RE .PP .SH "Member Function Documentation" .PP .SS "QRectF QwtPlotZoneItem::boundingRect () const\fC [virtual]\fP" The bounding rectangle is build from the interval in one direction and something invalid for the opposite direction\&. .PP \fBReturns\fP .RS 4 An invalid rectangle with valid boundaries in one direction .RE .PP .PP Reimplemented from \fBQwtPlotItem\fP\&. .SS "const QBrush & QwtPlotZoneItem::brush () const" .PP \fBReturns\fP .RS 4 Brush used to fill the zone .RE .PP \fBSee also\fP .RS 4 \fBsetPen()\fP, \fBbrush()\fP .RE .PP .SS "void QwtPlotZoneItem::draw (QPainter * painter, const \fBQwtScaleMap\fP & xMap, const \fBQwtScaleMap\fP & yMap, const QRectF & canvasRect) const\fC [virtual]\fP" Draw the zone .PP \fBParameters\fP .RS 4 \fIpainter\fP Painter .br \fIxMap\fP x Scale Map .br \fIyMap\fP y Scale Map .br \fIcanvasRect\fP Contents rectangle of the canvas in painter coordinates .RE .PP .PP Implements \fBQwtPlotItem\fP\&. .SS "\fBQwtInterval\fP QwtPlotZoneItem::interval () const" .PP \fBReturns\fP .RS 4 Zone interval .RE .PP \fBSee also\fP .RS 4 \fBsetInterval()\fP, \fBorientation()\fP .RE .PP .SS "Qt::Orientation QwtPlotZoneItem::orientation ()" .PP \fBReturns\fP .RS 4 Orientation of the zone .RE .PP \fBSee also\fP .RS 4 \fBsetOrientation()\fP .RE .PP .SS "const QPen & QwtPlotZoneItem::pen () const" .PP \fBReturns\fP .RS 4 Pen used to draw the border lines .RE .PP \fBSee also\fP .RS 4 \fBsetPen()\fP, \fBbrush()\fP .RE .PP .SS "int QwtPlotZoneItem::rtti () const\fC [virtual]\fP" .PP \fBReturns\fP .RS 4 \fBQwtPlotItem::Rtti_PlotZone\fP .RE .PP .PP Reimplemented from \fBQwtPlotItem\fP\&. .SS "void QwtPlotZoneItem::setBrush (const QBrush & brush)" .PP Assign a brush\&. The brush is used to fill the zone .PP \fBParameters\fP .RS 4 \fIbrush\fP Brush .RE .PP \fBSee also\fP .RS 4 \fBpen()\fP, \fBsetBrush()\fP .RE .PP .SS "void QwtPlotZoneItem::setInterval (const \fBQwtInterval\fP & interval)" Set the interval of the zone .PP For a horizontal zone the interval is related to the y axis, for a vertical zone it is related to the x axis\&. .PP \fBParameters\fP .RS 4 \fIinterval\fP Zone interval .RE .PP \fBSee also\fP .RS 4 \fBinterval()\fP, \fBsetOrientation()\fP .RE .PP .SS "void QwtPlotZoneItem::setInterval (double min, double max)" Set the interval of the zone .PP For a horizontal zone the interval is related to the y axis, for a vertical zone it is related to the x axis\&. .PP \fBParameters\fP .RS 4 \fImin\fP Minimum of the interval .br \fImax\fP Maximum of the interval .RE .PP \fBSee also\fP .RS 4 \fBinterval()\fP, \fBsetOrientation()\fP .RE .PP .SS "void QwtPlotZoneItem::setOrientation (Qt::Orientation orientation)" .PP Set the orientation of the zone\&. A horizontal zone highlights an interval of the y axis, a vertical zone of the x axis\&. It is unbounded in the opposite direction\&. .PP \fBSee also\fP .RS 4 \fBorientation()\fP, \fBQwtPlotItem::setAxes()\fP .RE .PP .SS "void QwtPlotZoneItem::setPen (const QColor & color, qreal width = \fC0\&.0\fP, Qt::PenStyle style = \fCQt::SolidLine\fP)" Build and assign a pen .PP In Qt5 the default pen width is 1\&.0 ( 0\&.0 in Qt4 ) what makes it non cosmetic ( see QPen::isCosmetic() )\&. This method has been introduced to hide this incompatibility\&. .PP \fBParameters\fP .RS 4 \fIcolor\fP Pen color .br \fIwidth\fP Pen width .br \fIstyle\fP Pen style .RE .PP \fBSee also\fP .RS 4 \fBpen()\fP, \fBbrush()\fP .RE .PP .SS "void QwtPlotZoneItem::setPen (const QPen & pen)" .PP Assign a pen\&. The pen is used to draw the border lines of the zone .PP \fBParameters\fP .RS 4 \fIpen\fP Pen .RE .PP \fBSee also\fP .RS 4 \fBpen()\fP, \fBsetBrush()\fP .RE .PP .SH "Author" .PP Generated automatically by Doxygen for Qwt User's Guide from the source code\&.