JKQTPlotter
an extensive Qt4/Qt5 Plotter framework (including a fast variant and a LaTeX equation renderer!), written fully in C/C++ and without external dependencies

This implements xy line plots. This also alows to draw symbols at the data points. More...

#include <jkqtpscatter.h>

Inheritance diagram for JKQTPXYLineGraph:
Collaboration diagram for JKQTPXYLineGraph:

Public Member Functions

 JKQTPXYLineGraph (JKQTBasePlotter *parent=nullptr)
 class constructor More...
 
 JKQTPXYLineGraph (JKQTPlotter *parent)
 class constructor More...
 
virtual void draw (JKQTPEnhancedPainter &painter) override
 plots the graph to the plotter object specified as parent More...
 
virtual void drawKeyMarker (JKQTPEnhancedPainter &painter, QRectF &rect) override
 plots a key marker inside the specified rectangle rect More...
 
bool getDrawLine () const
 indicates whether to draw a line or not More...
 
virtual QColor getKeyLabelColor () const override
 returns the color to be used for the key label More...
 
void setColor (QColor c)
 set color of line and symbol More...
 
void setDrawLine (bool __value)
 indicates whether to draw a line or not More...
 
- Public Member Functions inherited from JKQTPXYGraph
 JKQTPXYGraph (JKQTBasePlotter *parent=nullptr)
 class constructor More...
 
 JKQTPXYGraph (JKQTPlotter *parent)
 class constructor More...
 
DataSortOrder getDataSortOrder () const
 if !=Unsorted, the data is sorted before plotting More...
 
int getXColumn () const
 the column that contains the x-component of the datapoints More...
 
virtual bool getXMinMax (double &minx, double &maxx, double &smallestGreaterZero) override
 get the maximum and minimum x-value of the graph More...
 
int getYColumn () const
 the column that contains the y-component of the datapoints More...
 
virtual bool getYMinMax (double &miny, double &maxy, double &smallestGreaterZero) override
 get the maximum and minimum y-value of the graph More...
 
virtual double hitTest (const QPointF &posSystem, QPointF *closestSpotSystem=nullptr, QString *label=nullptr, HitTestMode mode=HitTestXY) const override
 Implmentation of JKQTPPlotElement::hitTest(), which searches through all graph points defined by xColumn and yColumn and returns a general x/y-label, also taking into account possibly known errors to the graphs (if it is derived from JKQTPXGraphErrorData and/or JKQTPYGraphErrorData. More...
 
void setDataSortOrder (DataSortOrder __value)
 if !=Unsorted, the data is sorted before plotting More...
 
void setDataSortOrder (int __value)
 if !=Unsorted, the data is sorted before plotting More...
 
void setXColumn (int __value)
 the column that contains the x-component of the datapoints More...
 
void setXColumn (size_t __value)
 the column that contains the x-component of the datapoints More...
 
void setXYColumns (int xCol, int yCol)
 sets xColumn and yColumn at the same time More...
 
void setXYColumns (QPair< int, int > xyColPair)
 sets xColumn and yColumn at the same time More...
 
void setXYColumns (QPair< size_t, size_t > xyColPair)
 sets xColumn and yColumn at the same time More...
 
void setXYColumns (size_t xCol, size_t yCol)
 sets xColumn and yColumn at the same time More...
 
void setXYColumns (std::pair< int, int > xyColPair)
 sets xColumn and yColumn at the same time More...
 
void setXYColumns (std::pair< size_t, size_t > xyColPair)
 sets xColumn and yColumn at the same time More...
 
void setYColumn (int __value)
 the column that contains the y-component of the datapoints More...
 
void setYColumn (size_t __value)
 the column that contains the y-component of the datapoints More...
 
virtual bool usesColumn (int column) const override
 returns true if the given column is used by the graph More...
 
- Public Member Functions inherited from JKQTPGraph
 JKQTPGraph (JKQTBasePlotter *parent=nullptr)
 class constructor More...
 
 JKQTPGraph (JKQTPlotter *parent)
 class constructor More...
 
virtual ~JKQTPGraph ()=default
 default wirtual destructor More...
 
- Public Member Functions inherited from JKQTPPlotElement
 JKQTPPlotElement (JKQTBasePlotter *parent=nullptr)
 class constructor More...
 
 JKQTPPlotElement (JKQTPlotter *parent)
 class constructor More...
 
virtual ~JKQTPPlotElement ()=default
 default wirtual destructor More...
 
virtual void drawOutside (JKQTPEnhancedPainter &painter, QRect leftSpace, QRect rightSpace, QRect topSpace, QRect bottomSpace)
 plots outside the actual plot field of view (e.g. color bars, scale bars, ...) More...
 
QImage generateKeyMarker (QSize size=QSize(16, 16))
 returns an image with a key marker inside
More...
 
virtual void getOutsideSize (JKQTPEnhancedPainter &painter, int &leftSpace, int &rightSpace, int &topSpace, int &bottomSpace)
 if the graph plots outside the actual plot field of view (e.g. color bars, scale bars, ...) More...
 
JKQTBasePlottergetParent ()
 returns the parent painter class More...
 
virtual QString getTitle () const
 returns the the title of the plot More...
 
virtual bool isHighlighted () const
 returns whether the graph is shown in a highlighted style in the plot More...
 
virtual bool isVisible () const
 returns whether the graph is visible in the plot More...
 
virtual void setHighlighted (bool __value)
 sets whether the graph is drawn in a highlighted style in the plot More...
 
virtual void setParent (JKQTBasePlotter *parent)
 sets the parent painter class More...
 
virtual void setParent (JKQTPlotter *parent)
 sets the parent painter class More...
 
virtual void setTitle (const QString &__value)
 sets the title of the plot (for display in key!). More...
 
virtual void setVisible (bool __value)
 sets whether the graph is visible in the plot More...
 
- Public Member Functions inherited from JKQTPGraphLineStyleMixin
 JKQTPGraphLineStyleMixin ()
 class constructor More...
 
virtual ~JKQTPGraphLineStyleMixin ()
 
QColor getHighlightingLineColor () const
 get the color of the graph line when highlighted More...
 
QBrush getLineBrush () const
 gets the brush used to fill the line area More...
 
Qt::PenCapStyle getLineCapStyle () const
 gets the cap style More...
 
QColor getLineColor () const
 get the color of the graph line More...
 
qreal getLineDashOffset () const
 returns the dash offset for a custom dash style More...
 
QVector< qreal > getLineDashPattern () const
 gets the dash pattern for a custom dash style More...
 
Qt::PenJoinStyle getLineJoinStyle () const
 returns the join style More...
 
Qt::PenStyle getLineStyle () const
 get the style of the graph line More...
 
double getLineWidth () const
 get the line width of the graph line (in pt) More...
 
void initLineStyle (JKQTBasePlotter *parent, int &parentPlotStyle)
 initiaize the line style (from the parent plotter) More...
 
void setHighlightingLineColor (const QColor &__value)
 set the color of the graph line when highlighted More...
 
void setLineBrush (const QBrush &style)
 sets the brush used to fill the line area More...
 
void setLineCapStyle (Qt::PenCapStyle style)
 sets the cap style More...
 
void setLineColor (const QColor &__value)
 set the color of the graph line More...
 
void setLineDashOffset (qreal offset)
 sets the dash offset for a custom dash style More...
 
void setLineDashPattern (const QVector< qreal > &pattern)
 sets the dash pattern for a custom dash style More...
 
void setLineJoinStyle (Qt::PenJoinStyle style)
 sets the join style More...
 
void setLineStyle (Qt::PenStyle __value)
 set the style of the graph line More...
 
void setLineWidth (double __value)
 set the line width of the graph line (in pt) More...
 
- Public Member Functions inherited from JKQTPGraphSymbolStyleMixin
 JKQTPGraphSymbolStyleMixin ()
 class constructor More...
 
virtual ~JKQTPGraphSymbolStyleMixin ()
 
QColor getSymbolColor () const
 set the color of the graph symbols More...
 
QColor getSymbolFillColor () const
 set the color of filling of the graph symbols More...
 
double getSymbolLineWidth () const
 get the line width of the graph symbol outline (in pt) More...
 
double getSymbolSize () const
 get the size (=diameter in pt) of the graph symbol (in pt) More...
 
JKQTPGraphSymbols getSymbolType () const
 get the type of the graph symbol More...
 
void initSymbolStyle (JKQTBasePlotter *parent, int &parentPlotStyle)
 initiaize the symbol style (from the parent plotter) More...
 
void setSymbolColor (const QColor &__value)
 set the color of the graph symbols More...
 
void setSymbolFillColor (const QColor &__value)
 set the color of filling of the graph symbols More...
 
void setSymbolLineWidth (double __value)
 set the line width of the graph symbol outline (in pt) More...
 
void setSymbolSize (double __value)
 set the size (=diameter in pt) of the graph symbol (in pt) More...
 
void setSymbolType (JKQTPGraphSymbols __value)
 set the type of the graph symbol More...
 

Protected Attributes

bool drawLine
 indicates whether to draw a line or not More...
 
- Protected Attributes inherited from JKQTPXYGraph
DataSortOrder sortData
 if !=Unsorted, the data is sorted before plotting More...
 
QVector< int > sortedIndices
 this array contains the order of indices, in which to access the data in the data columns More...
 
int xColumn
 the column that contains the x-component of the datapoints More...
 
int yColumn
 the column that contains the y-component of the datapoints More...
 
- Protected Attributes inherited from JKQTPPlotElement
bool highlighted
 indicates whether the graph is shown in a "highlghted" in the plot More...
 
QVector< HitTestLocationm_hitTestData
 dataset with graph-points and associated data fro the function hitTest() More...
 
JKQTBasePlotterparent
 the plotter object this object belongs to More...
 
int parentPlotStyle
 internal storage for the used parent plot style More...
 
QString title
 title of the plot (for display in key!). If no title is supplied, no key entry is drawn. More...
 
bool visible
 indicates whether the graph is visible in the plot More...
 

Additional Inherited Members

- Public Types inherited from JKQTPXYGraph
enum  DataSortOrder {
  Unsorted =0,
  SortedX =1,
  SortedY =2
}
 specifies how to sort the data in a JKQTPXYGraph before drawing More...
 
- Public Types inherited from JKQTPPlotElement
enum  HitTestMode {
  HitTestXY,
  HitTestXOnly,
  HitTestYOnly
}
 modes of operation for the function hitTest() More...
 
- Protected Member Functions inherited from JKQTPXYGraph
int getDataIndex (int i)
 returns the index of the i-th datapoint (where i is an index into the SORTED datapoints) More...
 
virtual bool getIndexRange (int &imin, int &imax) const
 determines the range of row indexes available in the data columns of this graph More...
 
virtual void intSortData ()
 
- Protected Member Functions inherited from JKQTPGraph
virtual void drawErrorsAfter (JKQTPEnhancedPainter &)
 this function is used to plot error inidcators after plotting the graphs. More...
 
virtual void drawErrorsBefore (JKQTPEnhancedPainter &)
 this function is used to plot error inidcators before plotting the graphs. More...
 
bool getDataMinMax (int column, double &minx, double &maxx, double &smallestGreaterZero)
 get the maximum and minimum value of the given column More...
 
- Protected Member Functions inherited from JKQTPPlotElement
void addHitTestData (const HitTestLocation &loc)
 clear the internal datastore for hitTest() More...
 
void addHitTestData (const QPointF &pos_, const QString &label_)
 clear the internal datastore for hitTest() More...
 
void addHitTestData (const QPointF &pos_, int index_, const QString &label_)
 clear the internal datastore for hitTest() More...
 
void addHitTestData (const QPointF &pos_, int index_=-1, JKQTPDatastore *datastore=nullptr)
 clear the internal datastore for hitTest(), this variant uses formatHitTestDefaultLabel() to auto-generate the label More...
 
void addHitTestData (double x_, double y_, const QString &label_)
 add a new point on the graph to the internal datastore for hitTest() More...
 
void addHitTestData (double x_, double y_, int index_, const QString &label_)
 clear the internal datastore for hitTest() More...
 
void addHitTestData (double x_, double y_, int index_=-1, JKQTPDatastore *datastore=nullptr)
 add a new point on the graph to the internal datastore for hitTest(), this variant uses formatHitTestDefaultLabel() to auto-generate the label More...
 
QPointF backTransform (const QPointF &x) const
 tool routine that back-transforms a QPointF according to the parent's transformation rules (pixels --> plot coordinate) More...
 
QPointF backTransform (double x, double y) const
 tool routine that back-transforms a QPointF according to the parent's transformation rules (pixels --> plot coordinate) More...
 
virtual double backtransformX (double x) const
 tool routine that backtransforms an x-coordinate (pixels --> plot coordinate) for this plot element More...
 
virtual double backtransformY (double y) const
 tool routine that backtransforms a y-coordinate (pixels --> plot coordinate) for this plot element More...
 
void clearHitTestData ()
 clear the internal datastore for hitTest() More...
 
virtual QString formatHitTestDefaultLabel (double x, double y, int index=-1, JKQTPDatastore *datastore=nullptr) const
 tool-function for hitTest(), which formats a default label, taking into account the x- and y-position (both provided) and optionally the errors of these positions. More...
 
void reserveHitTestData (int points)
 reserve list entries for up to points graph points in the internal datastore for hitTest() More...
 
QPointF transform (const QPointF &x) const
 tool routine that transforms a QPointF according to the parent's transformation rules (plot coordinate --> pixels) More...
 
QVector< QPointF > transform (const QVector< QPointF > &x) const
 tool routine that transforms a QVector<QPointF> according to the parent's transformation rules (plot coordinate --> pixels) More...
 
QPointF transform (double x, double y) const
 tool routine that transforms a QPointF according to the parent's transformation rules (plot coordinate --> pixels) More...
 
QPainterPath transformToLinePath (const QVector< QPointF > &x) const
 tool routine that transforms a QVector<QPointF> according to the parent's transformation rules and returns a (non-closed) path consisting of lines (plot coordinate --> pixels) More...
 
QPolygonF transformToPolygon (const QVector< QPointF > &x) const
 tool routine that transforms a QVector<QPointF> according to the parent's transformation rules and returns a polygon (plot coordinate --> pixels) More...
 
QVector< double > transformX (const QVector< double > &x) const
 transform all x-coordinates in a vector x More...
 
virtual double transformX (double x) const
 tool routine that transforms an x-coordinate (plot coordinate --> pixels) for this plot element More...
 
QVector< double > transformY (const QVector< double > &x) const
 transform all y-coordinates in a vector x More...
 
virtual double transformY (double y) const
 tool routine that transforms a y-coordinate (plot coordinate --> pixels) for this plot element More...
 
- Protected Member Functions inherited from JKQTPGraphLineStyleMixin
QPen getHighlightingLinePen (JKQTPEnhancedPainter &painter, JKQTBasePlotter *parent) const
 constructs a QPen from the line styling properties More...
 
QPen getHighlightingLinePenForRects (JKQTPEnhancedPainter &painter, JKQTBasePlotter *parent) const
 constructs a QPen from the line styling properties, suitable for drawing rectangle with sharp corners More...
 
QPen getLinePen (JKQTPEnhancedPainter &painter, JKQTBasePlotter *parent) const
 constructs a QPen from the line styling properties More...
 
QPen getLinePenForRects (JKQTPEnhancedPainter &painter, JKQTBasePlotter *parent) const
 constructs a QPen from the line styling properties, suitable for drawing rectangles with sharp edges More...
 
- Protected Member Functions inherited from JKQTPGraphSymbolStyleMixin
QBrush getSymbolBrush (JKQTPEnhancedPainter &painter, JKQTBasePlotter *parent) const
 constructs a QPen from the line styling properties More...
 
QPen getSymbolPen (JKQTPEnhancedPainter &painter, JKQTBasePlotter *parent) const
 constructs a QPen from the line styling properties More...
 
void plotStyledSymbol (JKQTBasePlotter *parent, JKQTPEnhancedPainter &painter, double x, double y) const
 plot a symbol at location x,y (in painter coordinates), using the current style More...
 
void plotStyledSymbol (JKQTBasePlotter *parent, JKQTPEnhancedPainter &painter, double x, double y, double symbolSize) const
 plot a symbol at location x,y (in painter coordinates), using the current style More...
 
void plotStyledSymbol (JKQTBasePlotter *parent, JKQTPEnhancedPainter &painter, double x, double y, JKQTPGraphSymbols type) const
 plot a symbol at location x,y (in painter coordinates), using the current style More...
 
void plotStyledSymbol (JKQTBasePlotter *parent, JKQTPEnhancedPainter &painter, double x, double y, QColor color, QColor fillColor) const
 plot a symbol at location x,y (in painter coordinates), using the current style More...
 
- Properties inherited from JKQTPGraphLineStyleMixin
QColor highlightingLineColor
 
QColor lineColor
 
Qt::PenStyle lineStyle
 
double lineWidth
 
- Properties inherited from JKQTPGraphSymbolStyleMixin
QColor symbolColor
 
QColor symbolFillColor
 
double symbolLineWidth
 
double symbolSize
 
JKQTPGraphSymbols symbolType
 

Detailed Description

Constructor & Destructor Documentation

◆ JKQTPXYLineGraph() [1/2]

JKQTPXYLineGraph::JKQTPXYLineGraph ( JKQTBasePlotter parent = nullptr)

class constructor

◆ JKQTPXYLineGraph() [2/2]

JKQTPXYLineGraph::JKQTPXYLineGraph ( JKQTPlotter parent)

class constructor

Member Function Documentation

◆ draw()

virtual void JKQTPXYLineGraph::draw ( JKQTPEnhancedPainter painter)
overridevirtual

plots the graph to the plotter object specified as parent

Implements JKQTPPlotElement.

Reimplemented in JKQTPXYParametrizedScatterGraph.

◆ drawKeyMarker()

virtual void JKQTPXYLineGraph::drawKeyMarker ( JKQTPEnhancedPainter painter,
QRectF &  rect 
)
overridevirtual

plots a key marker inside the specified rectangle rect

Implements JKQTPPlotElement.

Reimplemented in JKQTPXYParametrizedScatterGraph.

◆ getDrawLine()

bool JKQTPXYLineGraph::getDrawLine ( ) const

indicates whether to draw a line or not

◆ getKeyLabelColor()

virtual QColor JKQTPXYLineGraph::getKeyLabelColor ( ) const
overridevirtual

returns the color to be used for the key label

Implements JKQTPPlotElement.

Reimplemented in JKQTPXYParametrizedScatterGraph.

◆ setColor()

void JKQTPXYLineGraph::setColor ( QColor  c)

set color of line and symbol

◆ setDrawLine()

void JKQTPXYLineGraph::setDrawLine ( bool  __value)

indicates whether to draw a line or not

Member Data Documentation

◆ drawLine

bool JKQTPXYLineGraph::drawLine
protected

indicates whether to draw a line or not


The documentation for this class was generated from the following file: