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QCPCurveData Class Reference

Holds the data of one single data point for QCPCurve. More...

#include <qcustomplot.h>

Public Member Functions

 QCPCurveData ()
 
 QCPCurveData (double t, double key, double value)
 
double sortKey () const
 
double mainKey () const
 
double mainValue () const
 
QCPRange valueRange () const
 
 QCPCurveData ()
 
 QCPCurveData (double t, double key, double value)
 

Static Public Member Functions

static QCPCurveData fromSortKey (double sortKey)
 
static bool sortKeyIsMainKey ()
 

Public Attributes

double t
 
double key
 
double value
 

Detailed Description

Holds the data of one single data point for QCPCurve.

The stored data is:

  • t: the free ordering parameter of this curve point, like in the mathematical vector (x(t), y(t)). (This is the sortKey)
  • key: coordinate on the key axis of this curve point (this is the mainKey)
  • value: coordinate on the value axis of this curve point (this is the mainValue)

The container for storing multiple data points is QCPCurveDataContainer. It is a typedef for QCPDataContainer with QCPCurveData as the DataType template parameter. See the documentation there for an explanation regarding the data type's generic methods.

See also
QCPCurveDataContainer

The container for storing multiple data points is QCPCurveDataMap.

The stored data is:

  • t: the free parameter of the curve at this curve point (cp. the mathematical vector (x(t), y(t)))
  • key: coordinate on the key axis of this curve point
  • value: coordinate on the value axis of this curve point
See also
QCPCurveDataMap

Definition at line 6164 of file qcustomplot.h.

Constructor & Destructor Documentation

◆ QCPCurveData() [1/4]

QCPCurveData::QCPCurveData ( )

Constructs a curve data point with t, key and value set to zero.

Definition at line 22781 of file qcustomplot.cpp.

◆ QCPCurveData() [2/4]

QCPCurveData::QCPCurveData ( double  t,
double  key,
double  value 
)

Constructs a curve data point with the specified t, key and value.

Definition at line 22786 of file qcustomplot.cpp.

◆ QCPCurveData() [3/4]

QCPCurveData::QCPCurveData ( )

◆ QCPCurveData() [4/4]

QCPCurveData::QCPCurveData ( double  t,
double  key,
double  value 
)

Member Function Documentation

◆ fromSortKey()

static QCPCurveData QCPCurveData::fromSortKey ( double  sortKey)
inlinestatic

Returns a data point with the specified sortKey (assigned to the data point's t member). All other members are set to zero.

For a general explanation of what this method is good for in the context of the data container, see the documentation of QCPDataContainer.

Definition at line 6170 of file qcustomplot.h.

◆ mainKey()

double QCPCurveData::mainKey ( ) const
inline

Returns the key member of this data point.

For a general explanation of what this method is good for in the context of the data container, see the documentation of QCPDataContainer.

Definition at line 6175 of file qcustomplot.h.

◆ mainValue()

double QCPCurveData::mainValue ( ) const
inline

Returns the value member of this data point.

For a general explanation of what this method is good for in the context of the data container, see the documentation of QCPDataContainer.

Definition at line 6176 of file qcustomplot.h.

◆ sortKey()

double QCPCurveData::sortKey ( ) const
inline

Returns the t member of this data point.

For a general explanation of what this method is good for in the context of the data container, see the documentation of QCPDataContainer.

Definition at line 6169 of file qcustomplot.h.

◆ sortKeyIsMainKey()

static static bool QCPCurveData::sortKeyIsMainKey ( )
inlinestatic

Since the member key is the data point key coordinate and the member t is the data ordering parameter, this method returns false.

For a general explanation of what this method is good for in the context of the data container, see the documentation of QCPDataContainer.

Definition at line 6173 of file qcustomplot.h.

◆ valueRange()

QCPRange QCPCurveData::valueRange ( ) const
inline

Returns a QCPRange with both lower and upper boundary set to value of this data point.

For a general explanation of what this method is good for in the context of the data container, see the documentation of QCPDataContainer.

Definition at line 6178 of file qcustomplot.h.

Member Data Documentation

◆ key

double QCPCurveData::key

Definition at line 6180 of file qcustomplot.h.

Referenced by QCPCurve::addData(), and QCPCurve::setData().

◆ t

double QCPCurveData::t

Definition at line 6180 of file qcustomplot.h.

Referenced by QCPCurve::addData(), and QCPCurve::setData().

◆ value

double QCPCurveData::value

Definition at line 6180 of file qcustomplot.h.

Referenced by QCPCurve::addData(), and QCPCurve::setData().

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