qwtintervalsample(3) [debian man page]
QwtIntervalSample(3) Qwt User's Guide QwtIntervalSample(3) NAME
QwtIntervalSample - A sample of the types (x1-x2, y) or (x, y1-y2) SYNOPSIS
#include <qwt_series_data.h> Public Member Functions QwtIntervalSample () QwtIntervalSample (double, const QwtInterval &) QwtIntervalSample (double value, double min, double max) bool operator== (const QwtIntervalSample &) const bool operator!= (const QwtIntervalSample &) const Public Attributes double value QwtInterval interval Detailed Description A sample of the types (x1-x2, y) or (x, y1-y2) Constructor &; Destructor Documentation QwtIntervalSample::QwtIntervalSample () [inline] Constructor The value is set to 0.0, the interval is invalid QwtIntervalSample::QwtIntervalSample (doublev, const QwtInterval &intv) [inline] Constructor. QwtIntervalSample::QwtIntervalSample (doublevalue, doublemin, doublemax) [inline] Constructor. Member Function Documentation bool QwtIntervalSample::operator!= (const QwtIntervalSample &other) const [inline] Compare operator. bool QwtIntervalSample::operator== (const QwtIntervalSample &other) const [inline] Compare operator. Member Data Documentation QwtInterval QwtIntervalSample::interval Interval. double QwtIntervalSample::value Value. Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 6.0.0 Fri Apr 15 2011 QwtIntervalSample(3)
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QwtPlotIntervalCurve(3) Qwt User's Guide QwtPlotIntervalCurve(3) NAME
QwtPlotIntervalCurve - QwtPlotIntervalCurve represents a series of samples, where each value is associated with an interval ( $[y1,y2] = f(x)$ ). SYNOPSIS
#include <qwt_plot_intervalcurve.h> Inherits QwtPlotSeriesItem< QwtIntervalSample >. Public Types enum CurveStyle { NoCurve, Tube, UserCurve = 100 } enum PaintAttribute { ClipPolygons = 0x01, ClipSymbol = 0x02 } typedef QFlags< PaintAttribute > PaintAttributes Public Member Functions QwtPlotIntervalCurve (const QString &title=QString::null) QwtPlotIntervalCurve (const QwtText &title) virtual ~QwtPlotIntervalCurve () virtual int rtti () const void setPaintAttribute (PaintAttribute, bool on=true) bool testPaintAttribute (PaintAttribute) const void setSamples (const QVector< QwtIntervalSample > &) void setPen (const QPen &) const QPen & pen () const void setBrush (const QBrush &) const QBrush & brush () const void setStyle (CurveStyle style) CurveStyle style () const void setSymbol (const QwtIntervalSymbol *) const QwtIntervalSymbol * symbol () const virtual void drawSeries (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const virtual QRectF boundingRect () const virtual void drawLegendIdentifier (QPainter *, const QRectF &) const Protected Member Functions void init () virtual void drawTube (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const virtual void drawSymbols (QPainter *, const QwtIntervalSymbol &, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const Detailed Description QwtPlotIntervalCurve represents a series of samples, where each value is associated with an interval ( $[y1,y2] = f(x)$ ). The representation depends on the style() and an optional symbol() that is displayed for each interval. QwtPlotIntervalCurve might be used to disply error bars or the area between 2 curves. Member Typedef Documentation typedef QFlags<PaintAttribute> QwtPlotIntervalCurve::PaintAttributes Paint attributes. Member Enumeration Documentation enum QwtPlotIntervalCurve::CurveStyle Curve styles. The default setting is QwtPlotIntervalCurve::Tube. See also: setStyle(), style() Enumerator: NoCurve Don't draw a curve. Note: This doesn't affect the symbols. Tube Build 2 curves from the upper and lower limits of the intervals and draw them with the pen(). The area between the curves is filled with the brush(). UserCurve Styles >= QwtPlotIntervalCurve::UserCurve are reserved for derived classes that overload drawSeries() with additional application specific curve types. enum QwtPlotIntervalCurve::PaintAttribute Attributes to modify the drawing algorithm. See also: setPaintAttribute(), testPaintAttribute() Enumerator: ClipPolygons Clip polygons before painting them. In situations, where points are far outside the visible area (f.e when zooming deep) this might be a substantial improvement for the painting performance. ClipSymbol Check if a symbol is on the plot canvas before painting it. Constructor &; Destructor Documentation QwtPlotIntervalCurve::QwtPlotIntervalCurve (const QString &title = QString::null) [explicit] Constructor Parameters: title Title of the curve QwtPlotIntervalCurve::QwtPlotIntervalCurve (const QwtText &title) [explicit] Constructor Parameters: title Title of the curve QwtPlotIntervalCurve::~QwtPlotIntervalCurve () [virtual] Destructor. Member Function Documentation QRectF QwtPlotIntervalCurve::boundingRect () const [virtual] Returns: Bounding rectangle of all samples. For an empty series the rectangle is invalid. Reimplemented from QwtPlotSeriesItem< QwtIntervalSample >. const QBrush & QwtPlotIntervalCurve::brush () const Returns: Brush used to fill the area in Tube style() See also: setBrush(), setStyle(), CurveStyle void QwtPlotIntervalCurve::drawLegendIdentifier (QPainter *painter, const QRectF &rect) const [virtual] In case of Tibe stale() a plain rectangle is painted without a pen filled the brush(). If a symbol is assigned it is painted cebtered into rect. Parameters: painter Painter rect Bounding rectangle for the identifier Reimplemented from QwtLegendItemManager. void QwtPlotIntervalCurve::drawSeries (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, intfrom, intto) const [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 sample to be painted to Index of the last sample to be painted. If to < 0 the series will be painted to its last sample. See also: drawTube(), drawSymbols() Implements QwtPlotAbstractSeriesItem. void QwtPlotIntervalCurve::drawSymbols (QPainter *painter, const QwtIntervalSymbol &symbol, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, intfrom, intto) const [protected, virtual] Draw symbols for a subset of the samples Parameters: painter Painter symbol Interval symbol xMap x map yMap y map canvasRect Contents rect of the canvas from Index of the first sample to be painted to Index of the last sample to be painted See also: setSymbol(), drawSeries(), drawTube() void QwtPlotIntervalCurve::drawTube (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, intfrom, intto) const [protected, virtual] Draw a tube Builds 2 curves from the upper and lower limits of the intervals and draws them with the pen(). The area between the curves is filled with the brush(). 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 sample to be painted to Index of the last sample to be painted. If to < 0 the series will be painted to its last sample. See also: drawSeries(), drawSymbols() void QwtPlotIntervalCurve::init () [protected] Initialize internal members. const QPen & QwtPlotIntervalCurve::pen () const Return the pen used to draw the lines. See also: setPen(), brush() int QwtPlotIntervalCurve::rtti () const [virtual] Returns: QwtPlotItem::Rtti_PlotIntervalCurve Reimplemented from QwtPlotItem. void QwtPlotIntervalCurve::setBrush (const QBrush &brush) Assign a brush. The brush is used to fill the area in Tube style(). Parameters: brush Brush See also: brush(), pen(), setStyle(), CurveStyle void QwtPlotIntervalCurve::setPaintAttribute (PaintAttributeattribute, boolon = true) Specify an attribute how to draw the curve Parameters: attribute Paint attribute on On/Off See also: testPaintAttribute() void QwtPlotIntervalCurve::setPen (const QPen &pen) Assign a pen. Parameters: pen New pen See also: pen(), brush() void QwtPlotIntervalCurve::setSamples (const QVector< QwtIntervalSample > &samples) Initialize data with an array of samples. Parameters: samples Vector of samples void QwtPlotIntervalCurve::setStyle (CurveStylestyle) Set the curve's drawing style Parameters: style Curve style See also: CurveStyle, style() void QwtPlotIntervalCurve::setSymbol (const QwtIntervalSymbol *symbol) Assign a symbol. Parameters: symbol Symbol See also: symbol() QwtPlotIntervalCurve::CurveStyle QwtPlotIntervalCurve::style () const Return the current style. See also: setStyle() const QwtIntervalSymbol * QwtPlotIntervalCurve::symbol () const Returns: Current symbol or NULL, when no symbol has been assigned See also: setSymbol() bool QwtPlotIntervalCurve::testPaintAttribute (PaintAttributeattribute) const Return the current paint attributes. See also: PaintAttribute, setPaintAttribute() Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 6.0.0 Fri Apr 15 2011 QwtPlotIntervalCurve(3)