class to plot an image from an 2-dimensional array of boolean values: alle true values are plotted in a given color, while the false pixels are drawn in another (default: transparent) More...

#include <jkqtpimageoverlays.h>

Inheritance diagram for JKQTPColumnOverlayImageEnhanced:

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Collaboration diagram for JKQTPColumnOverlayImageEnhanced:

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Public Member Functions
	JKQTPColumnOverlayImageEnhanced (JKQTBasePlotter *parent=nullptr)

	JKQTPColumnOverlayImageEnhanced (JKQTPlotter *parent)

virtual void	draw (JKQTPEnhancedPainter &painter) override
	plots the graph to the plotter object specified as parent

int	getImageColumn () const
	column to read overlay image from

virtual void	setImageColumn (int __value)
	column to read overlay image from

virtual bool	usesColumn (int c) const override
	returns `true` if the given column is used by the graph

Public Member Functions inherited from JKQTPOverlayImageEnhanced
	JKQTPOverlayImageEnhanced (double x, double y, double width, double height, bool data, int Nx, int Ny, QColor colTrue, JKQTBasePlotter parent=nullptr)
	class constructor

	JKQTPOverlayImageEnhanced (double x, double y, double width, double height, bool data, int Nx, int Ny, QColor colTrue, JKQTPlotter parent)
	class constructor

	JKQTPOverlayImageEnhanced (JKQTBasePlotter *parent=nullptr)

	JKQTPOverlayImageEnhanced (JKQTPlotter *parent)

virtual void	drawKeyMarker (JKQTPEnhancedPainter &painter, const QRectF &rect) override
	plots a key marker inside the specified rectangle rect

OverlayImageEnhancedDrawMode	getDrawMode () const
	indicates whether to draw filled rectangles, or symbols

JKQTPGraphSymbols	getSymbol () const
	which symbol to use for the datapoints

QString	getSymbolFontName () const
	get the font to be used for character symbols `JKQTPCharacterSymbol+QChar`('').unicode()

double	getSymbolLineWidth () const
	width (in pt) of the lines used to plot the symbol for the data points

double	getSymbolSizeFactor () const
	a rescaling factor for the symbols

void	setDrawMode (OverlayImageEnhancedDrawMode __value)
	indicates whether to draw filled rectangles, or symbols

void	setSymbolFontName (const QString &__value)
	set the font to be used for character symbols `JKQTPCharacterSymbol+QChar`('').unicode()

void	setSymbolLineWidth (double __value)
	width (in pt) of the lines used to plot the symbol for the data points

void	setSymbolSizeFactor (double __value)
	a rescaling factor for the symbols

void	setSymbolType (JKQTPGraphSymbols __value)
	which symbol to use for the datapoints

Public Member Functions inherited from JKQTPOverlayImage
	JKQTPOverlayImage (double x, double y, double width, double height, const bool data, int Nx, int Ny, QColor colTrue, JKQTBasePlotter parent=nullptr)
	class constructor

	JKQTPOverlayImage (double x, double y, double width, double height, const bool data, int Nx, int Ny, QColor colTrue, JKQTPlotter parent)
	class constructor

	JKQTPOverlayImage (JKQTBasePlotter *parent=nullptr)

	JKQTPOverlayImage (JKQTPlotter *parent)

virtual QImage	drawImage ()
	return the plotted image only as a QImage

const bool *	getData () const
	points to the data array, holding the image

QVector< double >	getDataAsDoubleVector () const
	return the data used for plotting as a QVector<double> in row-major data-ordering

QColor	getFalseColor () const
	color for `false` pixels

virtual QColor	getKeyLabelColor () const override
	returns the color to be used for the key label

int	getNx () const
	width of the data array data in pt

int	getNy () const
	height of the data array data in pt

QColor	getTrueColor () const
	color for `true` pixels

virtual void	setData (const bool *__value)
	points to the data array, holding the image

virtual void	setData (const bool *data, int Nx, int Ny)
	set the plot-data to a given array data with size Nx * Ny in row-major ordering

void	setFalseColor (const QColor &__value)
	color for `false` pixels

void	setNx (int __value)
	width of the data array data in pt

void	setNx (size_t __value)
	width of the data array data in pt

void	setNy (int __value)
	height of the data array data in pt

void	setNy (size_t __value)
	height of the data array data in pt

virtual void	setParent (JKQTBasePlotter *parent) override
	sets the parent painter class

virtual void	setTitle (const QString &title) override
	sets the title of the plot (for display in key!).

void	setTrueColor (const QColor &__value)
	color for `true` pixels

Public Member Functions inherited from JKQTPImageBase
	JKQTPImageBase (double x, double y, double width, double height, JKQTBasePlotter *parent=nullptr)
	class constructor

	JKQTPImageBase (double x, double y, double width, double height, JKQTPlotter *parent)
	class constructor

	JKQTPImageBase (JKQTBasePlotter *parent=nullptr)
	class constructor

	JKQTPImageBase (JKQTPlotter *parent)
	class constructor

double	getHeight () const
	height of image

double	getWidth () const
	width of image

double	getX () const
	x coordinate of lower left corner

virtual bool	getXMinMax (double &minx, double &maxx, double &smallestGreaterZero) override
	get the maximum and minimum x-value of the graph

double	getY () const
	y coordinate of lower left corner

virtual bool	getYMinMax (double &miny, double &maxy, double &smallestGreaterZero) override
	get the maximum and minimum y-value of the graph

Public Member Functions inherited from JKQTPGraph
	JKQTPGraph (JKQTBasePlotter *parent=nullptr)
	class constructor

virtual	~JKQTPGraph ()=default
	default wirtual destructor

Public Member Functions inherited from JKQTPPlotElement
	JKQTPPlotElement (JKQTBasePlotter *parent=nullptr)
	class constructor

virtual	~JKQTPPlotElement ()=default
	default wirtual destructor

QPointF	backTransform (const QPointF &x) const
	tool routine that back-transforms a QPointF according to the parent's transformation rules (pixels --> plot coordinate)

QPointF	backTransform (double x, double y) const
	tool routine that back-transforms a QPointF according to the parent's transformation rules (pixels --> plot coordinate)

double	backtransformX (double x) const
	tool routine that backtransforms an x-coordinate (pixels --> plot coordinate) for this plot element, uses the axis referenced in xAxisRef

double	backtransformY (double y) const
	tool routine that backtransforms a y-coordinate (pixels --> plot coordinate) for this plot element, uses the axis referenced in yAxisRef

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, ...)

QImage	generateKeyMarker (QSize size=QSize(16, 16))
	returns an image with a key marker inside

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, ...)

JKQTBasePlotter *	getParent ()
	returns the parent painter class

const JKQTBasePlotter *	getParent () const
	returns the parent painter class

QString	getTitle () const
	returns the the title of the plot

const JKQTPCoordinateAxis *	getXAxis () const
	returns the actual x-Axis-object from the parent plotter, referenced in xAxisRef

JKQTPCoordinateAxisRef	getXAxisRef () const
	indicates which coordinate axis to use for coordinate transforms in x-direction

const JKQTPCoordinateAxis *	getYAxis () const
	returns the actual y-Axis-object from the parent plotter, referenced in yAxisRef

JKQTPCoordinateAxisRef	getYAxisRef () const
	indicates which coordinate axis to use for coordinate transforms in y-direction

virtual double	hitTest (const QPointF &posSystem, QPointF closestSpotSystem=nullptr, QString label=nullptr, HitTestMode mode=HitTestXY) const
	returns the closest distance of the plot element to the (screen pixel) position pos, or `NAN`

bool	isHighlighted () const
	returns whether the graph is shown in a highlighted style in the plot

bool	isVisible () const
	returns whether the graph is visible in the plot

void	setAxes (JKQTPCoordinateAxisRef ref)
	set the coordinate axes to use for this plot element

virtual void	setParent (JKQTPlotter *parent)
	sets the parent painter class

void	setXAxis (JKQTPCoordinateAxisRef ref)
	indicates which coordinate axis to use for coordinate transforms in x-direction

void	setYAxis (JKQTPCoordinateAxisRef ref)
	indicates which coordinate axis to use for coordinate transforms in y-direction

QPointF	transform (const QPointF &x) const
	tool routine that transforms a QPointF according to the parent's transformation rules (plot coordinate --> pixels)

QPolygonF	transform (const QPolygonF &x) const
	tool routine that transforms a QPolygonF according to the parent's transformation rules (plot coordinate --> pixels)

QPointF	transform (double x, double y) const
	tool routine that transforms a QPointF according to the parent's transformation rules (plot coordinate --> pixels)

QPainterPath	transformToLinePath (const QPolygonF &x) const
	tool routine that transforms a QPolygonF according to the parent's transformation rules and returns a (non-closed) path consisting of lines (plot coordinate --> pixels)

QVector< double >	transformX (const QVector< double > &x) const
	transform all x-coordinates in a vector x

double	transformX (double x) const
	tool routine that transforms an x-coordinate (plot coordinate --> pixels) for this plot element, uses the axis referenced in xAxisRef

QVector< double >	transformY (const QVector< double > &x) const
	transform all y-coordinates in a vector x

double	transformY (double y) const
	tool routine that transforms a y-coordinate (plot coordinate --> pixels) for this plot element, uses the axis referenced in yAxisRef

Protected Attributes
int	imageColumn
	column to read overlay image from

Protected Attributes inherited from JKQTPOverlayImageEnhanced
OverlayImageEnhancedDrawMode	drawMode
	indicates whether to draw filled rectangles, or symbols

QString	m_symbolFontName
	font to be used for character symbols `JKQTPCharacterSymbol+QChar`('').unicode()

JKQTPGraphSymbols	symbol
	which symbol to use for the datapoints

double	symbolLineWidth
	width (in pt) of the lines used to plot the symbol for the data points

double	symbolSizeFactor
	a rescaling factor for the symbols

Protected Attributes inherited from JKQTPOverlayImage
QAction *	actCopyImage
	action that calls copyImagePlotAsImage()

QAction *	actSaveImage
	action that calls saveImagePlotAsImage()

const bool *	data
	points to the data array, holding the image

QColor	falseColor
	color for `false` pixels

int	Nx
	width of the data array data in pt

int	Ny
	height of the data array data in pt

QColor	trueColor
	color for `true` pixels

Protected Attributes inherited from JKQTPImageBase
double	height
	height of image

double	width
	width of image

double	x
	x coordinate of lower left corner

double	y
	y coordinate of lower left corner

Protected Attributes inherited from JKQTPPlotElement
QVector< HitTestLocation >	m_hitTestData
	dataset with graph-points and associated data from the function hitTest()

JKQTBasePlotter *	parent
	the plotter object this object belongs to

int	parentPlotStyle
	internal storage for the used parent plot style

Additional Inherited Members
Public Types inherited from JKQTPOverlayImageEnhanced
enum	OverlayImageEnhancedDrawMode { DrawAsRectangles , DrawAsImage , DrawAsSymbols }

Public Types inherited from JKQTPPlotElement
enum	HitTestMode { HitTestXY , HitTestXOnly , HitTestYOnly }
	modes of operation for the function hitTest() More...

Public Slots inherited from JKQTPOverlayImage
void	copyImagePlotAsImage ()
	copy the plotted image as an image into the clipboard

void	saveImagePlotAsImage (const QString &filename=QString(""), const QByteArray &outputFormat=QByteArray())
	save the plotted image as a file with filename and format outputFormat

Public Slots inherited from JKQTPImageBase
void	setHeight (double __value)
	height of image

void	setWidth (double __value)
	width of image

void	setX (double __value)
	x coordinate of lower left corner

void	setY (double __value)
	y coordinate of lower left corner

Public Slots inherited from JKQTPPlotElement
void	setHighlighted (bool __value)
	sets whether the graph is drawn in a highlighted style in the plot

void	setVisible (bool __value)
	sets whether the graph is visible in the plot

Protected Member Functions inherited from JKQTPImageBase
void	plotImage (JKQTPEnhancedPainter &painter, QImage &image, double x, double y, double width, double height)
	plot the given QImage onto the widget where the QImage fills the area defined by x, y (lower left corner) and width, height in the simplest case your implementation of draw() will call `plotImage(painter, image, this->x, this->y, this->width, this->height);`

Protected Member Functions inherited from JKQTPGraph
virtual void	drawErrorsAfter (JKQTPEnhancedPainter &)
	this function is used to plot error inidcators after plotting the graphs.

virtual void	drawErrorsBefore (JKQTPEnhancedPainter &)
	this function is used to plot error inidcators before plotting the graphs.

bool	getDataMinMax (int column, double &minx, double &maxx, double &smallestGreaterZero)
	get the maximum and minimum value of the given column

Protected Member Functions inherited from JKQTPPlotElement
void	addHitTestData (const HitTestLocation &loc)
	clear the internal datastore for hitTest()

void	addHitTestData (const QPointF &pos_, const QString &label_)
	clear the internal datastore for hitTest()

void	addHitTestData (const QPointF &pos_, int index_, const QString &label_)
	clear the internal datastore for hitTest()

void	addHitTestData (const QPointF &pos_, int index_=-1, const JKQTPDatastore *datastore=nullptr)
	clear the internal datastore for hitTest(), this variant uses formatHitTestDefaultLabel() to auto-generate the label

void	addHitTestData (double x_, double y_, const QString &label_)
	add a new point on the graph to the internal datastore for hitTest()

void	addHitTestData (double x_, double y_, int index_, const QString &label_)
	clear the internal datastore for hitTest()

void	addHitTestData (double x_, double y_, int index_=-1, const 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

void	clearHitTestData ()
	clear the internal datastore for hitTest()

virtual QString	formatHitTestDefaultLabel (double x, double y, int index=-1, const 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.

void	reserveHitTestData (int points)
	reserve list entries for up to points graph points in the internal datastore for hitTest()

QString	xFloatToString (double v, int past_comma=-1) const
	converts a x-value v into a string, taking into account the type of x-axis

QString	yFloatToString (double v, int past_comma=-1) const
	converts a x-value v into a string, taking into account the type of x-axis

Properties inherited from JKQTPPlotElement
bool	highlighted
	indicates whether the graph is shown in a "highlghted" in the plot

QString	title
	title of the plot (for display in key!). If no title is supplied, no key entry is drawn.

bool	visible
	indicates whether the graph is visible in the plot

JKQTPCoordinateAxisRef	xAxisRef
	indicates which coordinate axis to use for coordinate transforms in x-direction

JKQTPCoordinateAxisRef	yAxisRef
	indicates which coordinate axis to use for coordinate transforms in y-direction

Detailed Description

class to plot an image from an 2-dimensional array of boolean values: alle true values are plotted in a given color, while the false pixels are drawn in another (default: transparent)

In contrast to JKQTPOverlayImage this class draws ist contents as rectangles, not as semi-transparent image. This may lead to nicer results,but could be slower. Also it is possible to draw other types of markers (cross, circles, ...)

Constructor & Destructor Documentation

◆ JKQTPColumnOverlayImageEnhanced() [1/2]

JKQTPColumnOverlayImageEnhanced::JKQTPColumnOverlayImageEnhanced ( JKQTBasePlotter * parent = nullptr )

◆ JKQTPColumnOverlayImageEnhanced() [2/2]

JKQTPColumnOverlayImageEnhanced::JKQTPColumnOverlayImageEnhanced ( JKQTPlotter * parent )

Member Function Documentation

◆ draw()

virtual void JKQTPColumnOverlayImageEnhanced::draw ( JKQTPEnhancedPainter & painter )

overridevirtual

plots the graph to the plotter object specified as parent

Reimplemented from JKQTPOverlayImageEnhanced.

◆ getImageColumn()

int JKQTPColumnOverlayImageEnhanced::getImageColumn ( ) const

column to read overlay image from

◆ setImageColumn()

virtual void JKQTPColumnOverlayImageEnhanced::setImageColumn ( int __value )

virtual

column to read overlay image from

◆ usesColumn()

virtual bool JKQTPColumnOverlayImageEnhanced::usesColumn ( int c ) const

overridevirtual

returns true if the given column is used by the graph

This virtual function indicates whether a given column is used by this graph. Override this function in your derived graphs to indicate to JKQTPlotter / JKQTBasePlotter , which columns from the internal JKQTPDatastore are actually used. This information can be used e.g. for graph-specific data-export.

Reimplemented from JKQTPGraph.

Member Data Documentation

◆ imageColumn

int JKQTPColumnOverlayImageEnhanced::imageColumn

protected

column to read overlay image from

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

jkqtpimageoverlays.h

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ JKQTPColumnOverlayImageEnhanced() [1/2]

◆ JKQTPColumnOverlayImageEnhanced() [2/2]

Member Function Documentation

◆ draw()

◆ getImageColumn()

◆ setImageColumn()

◆ usesColumn()

Member Data Documentation

◆ imageColumn