QwtPlotSeriesItem(3) Qwt User's Guide QwtPlotSeriesItem(3)NAME
QwtPlotSeriesItem -
Class template for plot items representing a series of samples.
SYNOPSIS
#include <qwt_plot_seriesitem.h>
Inherits QwtPlotAbstractSeriesItem.
Public Member Functions
QwtPlotSeriesItem (const QString &title=QString::null)
QwtPlotSeriesItem (const QwtText &title)
virtual ~QwtPlotSeriesItem ()
void setData (QwtSeriesData< T > *)
QwtSeriesData< T > * data ()
const QwtSeriesData< T > * data () const
size_t dataSize () const
T sample (int index) const
virtual QRectF boundingRect () const
virtual void updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
Protected Attributes
QwtSeriesData< T > * d_series
Detailed Description
template<typename T> class QwtPlotSeriesItem< T >
Class template for plot items representing a series of samples.
Constructor &; Destructor Documentation
template<typename T > QwtPlotSeriesItem< T >::QwtPlotSeriesItem (const QString &title = QString::null) [explicit] Constructor
Parameters:
title Title of the series item
template<typename T > QwtPlotSeriesItem< T >::QwtPlotSeriesItem (const QwtText &title) [explicit] Constructor
Parameters:
title Title of the series item
template<typename T > QwtPlotSeriesItem< T >::~QwtPlotSeriesItem () [virtual]
Destructor.
Member Function Documentation
template<typename T > QRectF QwtPlotSeriesItem< T >::boundingRect () const [virtual] Returns:
Bounding rectangle of the data. If there is no bounding rect, like for empty data the rectangle is invalid.
See also:
QwtSeriesData<T>::boundingRect(), QRectF::isValid()
Reimplemented from QwtPlotItem.
Reimplemented in QwtPlotHistogram, and QwtPlotIntervalCurve.
template<typename T > QwtSeriesData< T > * QwtPlotSeriesItem< T >::data () [inline] Returns:
the the curve data
template<typename T > const QwtSeriesData< T > * QwtPlotSeriesItem< T >::data () const [inline] Returns:
the the curve data
template<typename T > size_t QwtPlotSeriesItem< T >::dataSize () const Return the size of the data arrays
See also:
setData()
template<typename T > T QwtPlotSeriesItem< T >::sample (intindex) const [inline] Parameters:
index Index
Returns:
Sample at position index
template<typename T> void QwtPlotSeriesItem< T >::setData (QwtSeriesData< T > *data) Assign a series of samples
Parameters:
data Data
Warning:
The item takes ownership of the data object, deleting it when its not used anymore.
template<typename T > void QwtPlotSeriesItem< T >::updateScaleDiv (const QwtScaleDiv &xScaleDiv, const QwtScaleDiv &yScaleDiv) [virtual] Update
the rect of interest according to the current scale ranges
Parameters:
xScaleDiv Scale division of the x-axis
yScaleDiv Scale division of the y-axis
See also:
QwtSeriesData<T>::setRectOfInterest()
Reimplemented from QwtPlotItem.
Member Data Documentation
template<typename T> QwtSeriesData<T>* QwtPlotSeriesItem< T >::d_series [protected]
Series.
Author
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Version 6.0.0 Fri Apr 15 2011 QwtPlotSeriesItem(3)
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QwtPlotAbstractSeriesItem(3) Qwt User's Guide QwtPlotAbstractSeriesItem(3)NAME
QwtPlotAbstractSeriesItem -
Base class for plot items representing a series of samples.
SYNOPSIS
#include <qwt_plot_seriesitem.h>
Inherits QwtPlotItem.
Inherited by QwtPlotSeriesItem< T >, QwtPlotSeriesItem< QPointF >, QwtPlotSeriesItem< QwtIntervalSample >, and QwtPlotSeriesItem<
QwtPoint3D >.
Public Member Functions
QwtPlotAbstractSeriesItem (const QString &title=QString::null)
QwtPlotAbstractSeriesItem (const QwtText &title)
virtual ~QwtPlotAbstractSeriesItem ()
void setOrientation (Qt::Orientation)
Qt::Orientation orientation () const
virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &) const
virtual void drawSeries (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to)
const =0
Detailed Description
Base class for plot items representing a series of samples.
Constructor &; Destructor Documentation
QwtPlotAbstractSeriesItem::QwtPlotAbstractSeriesItem (const QString &title = QString::null) [explicit] Constructor
Parameters:
title Title of the curve
QwtPlotAbstractSeriesItem::QwtPlotAbstractSeriesItem (const QwtText &title) [explicit] Constructor
Parameters:
title Title of the curve
QwtPlotAbstractSeriesItem::~QwtPlotAbstractSeriesItem () [virtual]
Destructor.
Member Function Documentation
void QwtPlotAbstractSeriesItem::draw (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const
[virtual]
Draw the complete series. Parameters:
painter Painter
xMap Maps x-values into pixel coordinates.
yMap Maps y-values into pixel coordinates.
canvasRect Contents rect of the canvas
Implements QwtPlotItem.
virtual void QwtPlotAbstractSeriesItem::drawSeries (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF
&canvasRect, intfrom, intto) const [pure virtual] Draw a subset of the samples
Parameters:
painter Painter
xMap Maps x-values into pixel coordinates.
yMap Maps y-values into pixel coordinates.
canvasRect Contents rect of the canvas
from Index of the first point to be painted
to Index of the last point to be painted. If to < 0 the curve will be painted to its last point.
Implemented in QwtPlotCurve, QwtPlotHistogram, QwtPlotIntervalCurve, and QwtPlotSpectroCurve.
Qt::Orientation QwtPlotAbstractSeriesItem::orientation () const Returns:
Orientation of the plot item
See also:
setOrientation()
void QwtPlotAbstractSeriesItem::setOrientation (Qt::Orientationorientation) Set the orientation of the item.
The orientation() might be used in specific way by a plot item. F.e. a QwtPlotCurve uses it to identify how to display the curve int
QwtPlotCurve::Steps or QwtPlotCurve::Sticks style.
See also:
orientation()
Author
Generated automatically by Doxygen for Qwt User's Guide from the source code.
Version 6.0.0 Fri Apr 15 2011 QwtPlotAbstractSeriesItem(3)