Describes a data range given by begin and end index. More...
Public Functions  
QCPDataRange ()  
QCPDataRange (int begin, int end)  
bool  operator== (const QCPDataRange &other) const 
bool  operator!= (const QCPDataRange &other) const 
int  begin () const 
int  end () const 
int  size () const 
int  length () const 
void  setBegin (int begin) 
void  setEnd (int end) 
bool  isValid () const 
bool  isEmpty () const 
QCPDataRange  bounded (const QCPDataRange &other) const 
QCPDataRange  expanded (const QCPDataRange &other) const 
QCPDataRange  intersection (const QCPDataRange &other) const 
QCPDataRange  adjusted (int changeBegin, int changeEnd) const 
bool  intersects (const QCPDataRange &other) const 
bool  contains (const QCPDataRange &other) const 
Related NonMembers  
(Note that these are not member functions.)  
QDebug  operator<< (QDebug d, const QCPDataRange &dataRange) 
Describes a data range given by begin and end index.
QCPDataRange holds two integers describing the begin (setBegin) and end (setEnd) index of a contiguous set of data points. The end index points to the data point above the last data point that's part of the data range, similarly to the nomenclature used in standard iterators.
Data Ranges are not bound to a certain plottable, thus they can be freely exchanged, created and modified. If a noncontiguous data set shall be described, the class QCPDataSelection is used, which holds and manages multiple instances of QCPDataRange. In most situations, QCPDataSelection is thus used.
Both QCPDataRange and QCPDataSelection offer convenience methods to work with them, e.g. bounded, expanded, intersects, intersection, adjusted, contains. Further, addition and subtraction operators (defined in QCPDataSelection) can be used to join/subtract data ranges and data selections (or mixtures), to retrieve a corresponding QCPDataSelection.
QCustomPlot's data selection mechanism is based on QCPDataSelection and QCPDataRange.
QCPDataRange::QCPDataRange  (  ) 
Creates an empty QCPDataRange, with begin and end set to 0.
QCPDataRange::QCPDataRange  (  int  begin, 
int  end  
) 
Creates a QCPDataRange, initialized with the specified begin and end.
No checks or corrections are made to ensure the resulting range is valid (isValid).

inline 
Returns the number of data points described by this data range. This is equal to the end index minus the begin index.

inline 
Returns the number of data points described by this data range. Equivalent to size.

inline 

inline 

inline 
Returns whether this range is valid. A valid range has a begin index greater or equal to 0, and an end index greater or equal to the begin index.

inline 
QCPDataRange QCPDataRange::bounded  (  const QCPDataRange &  other  )  const 
Returns a data range that matches this data range, except that parts exceeding other are excluded.
This method is very similar to intersection, with one distinction: If this range and the other range share no intersection, the returned data range will be empty with begin and end set to the respective boundary side of other, at which this range is residing. (intersection would just return a range with begin and end set to 0.)
QCPDataRange QCPDataRange::expanded  (  const QCPDataRange &  other  )  const 
Returns a data range that contains both this data range as well as other.
QCPDataRange QCPDataRange::intersection  (  const QCPDataRange &  other  )  const 
Returns the data range which is contained in both this data range and other.
This method is very similar to bounded, with one distinction: If this range and the other range share no intersection, the returned data range will be empty with begin and end set to 0. (bounded would return a range with begin and end set to one of the boundaries of other, depending on which side this range is on.)

inline 
Returns a data range where changeBegin and changeEnd were added to the begin and end indices, respectively.
bool QCPDataRange::intersects  (  const QCPDataRange &  other  )  const 
Returns whether this data range and other share common data points.
bool QCPDataRange::contains  (  const QCPDataRange &  other  )  const 
Returns whether all data points described by this data range are also in other.

related 
Prints dataRange in a human readable format to the qDebug output.