DataStreamPlot Class Reference

The DataStreamPlot display a series of data streams into the plot storing all the history of the data pushed into the DataStreamPlot during time. More...

Inheritance diagram for DataStreamPlot:

Public Slots
void	updatePlot ()
	recalculate the x and y scale axis and replot the data More...

Public Member Functions
	DataStreamPlot (QWidget *parent=0)
	constructor an empty LiveDataPlot without any data More...
virtual	~DataStreamPlot ()
	destructor More...
int	addDataStream (QString name)
	add a new stream to the plot More...
void	appendData (int streamID, float value)
	append a point to the stream specified More...
void	setDataStreamColor (int streamID, QColor color)
	set the color of the stream specified More...

Detailed Description

The DataStreamPlot display a series of data streams into the plot storing all the history of the data pushed into the DataStreamPlot during time.

Warning

this class is not thread-safe; if you need to append data in a multi-thread scenario, use DataStreamsWidget

Definition at line 39 of file datastreamplot.h.

Constructor & Destructor Documentation

DataStreamPlot

(

QWidget *

parent = 0

)

constructor an empty LiveDataPlot without any data

Definition at line 63 of file datastreamplot.cpp.

References DataStreamPlot::updatePlot().

~DataStreamPlot ( )

virtual

destructor

Definition at line 93 of file datastreamplot.cpp.

Member Function Documentation

int addDataStream

(

QString

name

)

add a new stream to the plot

Parameters

name	is the name of the stream (it will be displayed on the legend)
onLeft	if true the Y axis regarding this curve will be the left one, if false will be the right one

Returns

the id of the newly created stream

Definition at line 99 of file datastreamplot.cpp.

void appendData	(	int	streamID,
		float	value
	)

append a point to the stream specified

Parameters

streamID	is the id identifying the stream to which the data will be added
value	is the new data value to append to the stream

Note

this method does not trigger any reploting and/or widget update; you have to call updatePlot

Definition at line 115 of file datastreamplot.cpp.

void setDataStreamColor	(	int	streamID,
		QColor	color
	)

set the color of the stream specified

Parameters

streamID	is the id identifying the stream to which apply the color
color	to apply to the plotted data

Definition at line 109 of file datastreamplot.cpp.

void updatePlot ( )

slot

recalculate the x and y scale axis and replot the data

Definition at line 129 of file datastreamplot.cpp.

References farsa::max(), and farsa::min().

Referenced by DataStreamPlot::DataStreamPlot().

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

• utilities/include/datastreamplot.h
• utilities/src/datastreamplot.cpp