QVHistogramPlot Class Reference
[GUI blocks based on the QWT library]

Widget for plotting QList<double> property values from a block, as an histogram, over the time. More...

#include <QVHistogramPlot>

Inherits QVPlot.

Public Member Functions
	QVHistogramPlot (const QString name=QString(), bool time=true, int step=10, double maxim=0, double minim=0, QWidget *parent=0)
	Constructs a QVHistogramPlot with a given string identifier, and a iteration's parameters. Construct a new plot that shows QList<double> properties graphs as an histogram graph. This plot shows decorations, it hasn't got a pie graph, don't brush the data and autoshow. It can show graphs of QList<double> linked properties of different blocks.
Protected Member Functions
bool	linkUnspecifiedInputProperty (QVPropertyContainer *sourceContainer, QString sourcePropName, LinkType linkType=AsynchronousLink)
	Links properties from blocks. This method safely links properties from blocks in a thread safe manner. If the iterations are based on block's iterations (time == false), the block must be synchronised with previous linked blocks. Only can be linked QList<double> properties.

Detailed Description

Widget for plotting QList<double> property values from a block, as an histogram, over the time.

Class QVHistogramPlot shows a widget which will read a QList<double> from a block's output property, and will continuously plot its evolution in time during block execution.

The abscissas axis will correspond to the QList size, while the ordinate axis will scale to the maximum value of the double values in the list read from the block.

To show the usage of the class, we need again a block which produces the QList<double> of values to be plotted. The following code shows an example:

class MyBlock: public QVProcessingBlock
        {
        public:
                MyBlock(QString name): QVProcessingBlock(name)
                        {
                        addProperty<QList<double> >("histogram", outputFlag);
                        [...]
                        }

                void iterate()
                        {
                        QList<double> histogram;
                        [...]
                        // Calculate values for the 'histogram' variable.
                        [...]
                        setPropertyValue<QList<double> >("histogram", histogram);
                        [...]
                        }
        }

And then, in the main function, we can create a QVHistogramPlot and link it with that property, like this:

#include <QVHistogramPlot>

void main()
        {
        [...]
        MyBlock myBlock("block");
        QVHistogramPlot histPlot("Histogram", false, 1);
        myBlock.linkProperty(histPlot,"histogram");
        [...]
        }

The result will be an application showing the following window widget:

The second and third parameters in the constructor of the QVListPlot correspond to time (true) or iteration (false) based operation, and the refreshing interval (in hundreths of seconds, in the first case, or in absolute number of iterations, in the second case).

See also:: QVNumericPlot; QVCPUPlot

Definition at line 92 of file qvhistogramplot.h.

Constructor & Destructor Documentation

QVHistogramPlot::QVHistogramPlot	(	const QString	name = `QString ()`,
		bool	time = `true`,
		int	step = `10`,
		double	maxim = `0`,
		double	minim = `0`,
		QWidget *	parent = `0`
	)

Constructs a QVHistogramPlot with a given string identifier, and a iteration's parameters. Construct a new plot that shows QList<double> properties graphs as an histogram graph. This plot shows decorations, it hasn't got a pie graph, don't brush the data and autoshow. It can show graphs of QList<double> linked properties of different blocks.

Parameters:

	name	Identifier for the object to be created.
	time	True if the iterations are based on clock time (in second hundredths), and false if they are based on block's iterations.
	step	Set the base measure to plot's iterations ratio.
	maxim	The left axis maximum value shown, if it is 0, the maximum value is auto scale.
	minim	The left axis minimum value shown, it must be less than maximum value.
	parent	Identifier for the parent widget.

Todo:: los parámetros de configuración de los widgets numericplot e histogramplot puedan ser propiedades dinámicas.

Definition at line 35 of file qvhistogramplot.cpp.

Member Function Documentation

bool QVHistogramPlot::linkUnspecifiedInputProperty	(	QVPropertyContainer *	sourceContainer,
		QString	sourcePropName,
		LinkType	linkType = `AsynchronousLink`
	)			`[protected]`

Links properties from blocks. This method safely links properties from blocks in a thread safe manner. If the iterations are based on block's iterations (time == false), the block must be synchronised with previous linked blocks. Only can be linked QList<double> properties.

QVHistogramPlot Class Reference [GUI blocks based on the QWT library]

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

QVHistogramPlot Class Reference
[GUI blocks based on the QWT library]