wex::plot::trace Class Reference

Single trace to be plotted. More...

#include <plot2d.h>

Public Types
enum class	eType { plot , realtime , scatter }

Public Member Functions
void	set (const std::vector< double > &y)
	set plot data More...
void	setScatterX (const std::vector< double > &x)
std::vector< double >	get () const
void	add (double y)
	add new value to real time data More...
void	add (double x, double y)
	add point to scatter trace More...
void	clear ()
	clear data from trace
void	color (int clr)
	set color
int	color () const
void	thick (int t)
	set trace thickness in pixels
int	thick () const
int	size () const
	get number of points
double	value (double xfraction)
	y value at fractional position along x-axis More...
const std::vector< double > &	getY ()

Public Attributes
enum wex::plot::trace::eType	myType

Detailed Description

Single trace to be plotted.

Application code should not attempt to construct a trace Rather call one of plot::AddPointTrace, plot::AddRealTimeTrace or plot::AddStaticTrace which return a reference to the trace which can be configured and be populated with data.

    form fm;

     construct plot to be drawn on form

    plot::plot thePlot( fm );

     construct plot trace

    auto t1 = thePlot.AddStaticTrace();

     provide some data for  trace

    std::vector< double > d1 { 10, 15, 20, 25, 30, 25, 20, 15, 10 };
    t1.set( d1 );

     plot in blue

    t1.color( colors::blue );

     show and run

    fm.show();
    exec();

Member Function Documentation

add() [1/2]

void wex::plot::trace::add ( double  x, double  y  )

inline

add point to scatter trace

Parameters

[in]	x	location
[in]	y	location

An exception is thrown when this is called for a trace that is not scatter type

add() [2/2]

void wex::plot::trace::add ( double  y )

inline

add new value to real time data

Parameters

[in]

y

the new data point

An exception is thrown when this is called for a trace that is not real time type.

set()

void wex::plot::trace::set ( const std::vector< double > &  y )

inline

set plot data

Parameters

[in]

y

vector of data points to display

Replaces any existing data. Plot is NOT refreshed. An exception is thrown when this is called for a trace that is not plot or scatter type

value()

double wex::plot::trace::value ( double  xfraction )

inline

y value at fractional position along x-axis

Parameters

[in]

xfraction

x-axis position 0 to 1

Returns

y value at position, 0 if xfraction outside range 0 to 1

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

• include/plot2d.h