QCPRange
Public Member Functions  
QCPRange ()  
QCPRange (double lower, double upper)  
QCPRange  bounded (double lowerBound, double upperBound) const 
double  center () const 
bool  contains (double value) const 
void  expand (const QCPRange &otherRange) 
void  expand (double includeCoord) 
QCPRange  expanded (const QCPRange &otherRange) const 
QCPRange  expanded (double includeCoord) const 
void  normalize () 
bool  operator!= (const QCPRange &other) const 
QCPRange &  operator*= (const double &value) 
QCPRange &  operator+= (const double &value) 
QCPRange &  operator= (const double &value) 
QCPRange &  operator/= (const double &value) 
bool  operator== (const QCPRange &other) const 
QCPRange  sanitizedForLinScale () const 
QCPRange  sanitizedForLogScale () const 
double  size () const 
Static Public Member Functions  
static bool  validRange (const QCPRange &range) 
static bool  validRange (double lower, double upper) 
Public Attributes  
double  lower 
double  upper 
Static Public Attributes  
static const double  maxRange = 1e250 
static const double  minRange = 1e280 
Related Functions  
(Note that these are not member functions.)  
QDebug  operator<< (QDebug d, const QCPRange &range) 
Detailed Description
Represents the range an axis is encompassing.
contains a lower and upper double value and provides convenience input, output and modification functions.
 See also
 QCPAxis::setRange
Definition at line 774 of file qcustomplot.h.
Constructor & Destructor Documentation
◆ QCPRange() [1/2]
QCPRange::QCPRange  (  ) 
Constructs a range with lower and upper set to zero.
Definition at line 1909 of file qcustomplot.cpp.
◆ QCPRange() [2/2]
QCPRange::QCPRange  (  double  lower, 
double  upper  
) 
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Constructs a range with the specified lower and upper values.
The resulting range will be normalized (see normalize), so if lower is not numerically smaller than upper, they will be swapped.
Definition at line 1922 of file qcustomplot.cpp.
Member Function Documentation
◆ bounded()
QCPRange QCPRange::bounded  (  double  lowerBound, 
double  upperBound  
)  const 
Returns this range, possibly modified to not exceed the bounds provided as lowerBound and upperBound. If possible, the size of the current range is preserved in the process.
If the range shall only be bounded at the lower side, you can set upperBound to QCPRange::maxRange. If it shall only be bounded at the upper side, set lowerBound to QCPRange::maxRange.
Definition at line 2012 of file qcustomplot.cpp.
◆ center()

inline 
Returns the center of the range, i.e. (upper+lower)*0.5
Definition at line 797 of file qcustomplot.h.
◆ contains()

inline 
Returns true when value lies within or exactly on the borders of the range.
Definition at line 806 of file qcustomplot.h.
◆ expand() [1/2]
void QCPRange::expand  (  const QCPRange &  otherRange  ) 
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Expands this range such that otherRange is contained in the new range. It is assumed that both this range and otherRange are normalized (see normalize).
If this range contains NaN as lower or upper bound, it will be replaced by the respective bound of otherRange.
If otherRange is already inside the current range, this function does nothing.
 See also
 expanded
Definition at line 1941 of file qcustomplot.cpp.
◆ expand() [2/2]
void QCPRange::expand  (  double  includeCoord  ) 
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Expands this range such that includeCoord is contained in the new range. It is assumed that this range is normalized (see normalize).
If this range contains NaN as lower or upper bound, the respective bound will be set to includeCoord.
If includeCoord is already inside the current range, this function does nothing.
 See also
 expand
Definition at line 1961 of file qcustomplot.cpp.
◆ expanded() [1/2]
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Returns an expanded range that contains this and otherRange. It is assumed that both this range and otherRange are normalized (see normalize).
If this range contains NaN as lower or upper bound, the returned range's bound will be taken from otherRange.
 See also
 expand
Definition at line 1980 of file qcustomplot.cpp.
◆ expanded() [2/2]
QCPRange QCPRange::expanded  (  double  includeCoord  )  const 
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Returns an expanded range that includes the specified includeCoord. It is assumed that this range is normalized (see normalize).
If this range contains NaN as lower or upper bound, the returned range's bound will be set to includeCoord.
 See also
 expand
Definition at line 1997 of file qcustomplot.cpp.
◆ normalize()

inline 
Makes sure lower is numerically smaller than upper. If this is not the case, the values are swapped.
Definition at line 798 of file qcustomplot.h.
◆ operator*=()

inline 
Multiplies both boundaries of the range by value.
Definition at line 787 of file qcustomplot.h.
◆ operator+=()

inline 
Adds value to both boundaries of the range.
Definition at line 785 of file qcustomplot.h.
◆ operator=()

inline 
Subtracts value from both boundaries of the range.
Definition at line 786 of file qcustomplot.h.
◆ operator/=()

inline 
Divides both boundaries of the range by value.
Definition at line 788 of file qcustomplot.h.
◆ sanitizedForLinScale()
QCPRange QCPRange::sanitizedForLinScale  (  )  const 
Returns a sanitized version of the range. Sanitized means for linear scales, that lower will always be numerically smaller (or equal) to upper.
Definition at line 2096 of file qcustomplot.cpp.
◆ sanitizedForLogScale()
QCPRange QCPRange::sanitizedForLogScale  (  )  const 
Returns a sanitized version of the range. Sanitized means for logarithmic scales, that the range won't span the positive and negative sign domain, i.e. contain zero. Further lower will always be numerically smaller (or equal) to upper.
If the original range does span positive and negative sign domains or contains zero, the returned range will try to approximate the original range as good as possible. If the positive interval of the original range is wider than the negative interval, the returned range will only contain the positive interval, with lower bound set to rangeFac or rangeFac *upper, whichever is closer to zero. Same procedure is used if the negative interval is wider than the positive interval, this time by changing the upper bound.
Definition at line 2047 of file qcustomplot.cpp.
◆ size()

inline 
Returns the size of the range, i.e. upperlower
Definition at line 796 of file qcustomplot.h.
◆ validRange() [1/2]

static 
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Checks, whether the specified range is within valid bounds, which are defined as QCPRange::maxRange and QCPRange::minRange. A valid range means:
 range bounds within maxRange and maxRange
 range size above minRange
 range size below maxRange
Definition at line 2130 of file qcustomplot.cpp.
◆ validRange() [2/2]

static 
Checks, whether the specified range is within valid bounds, which are defined as QCPRange::maxRange and QCPRange::minRange. A valid range means:
 range bounds within maxRange and maxRange
 range size above minRange
 range size below maxRange
Definition at line 2111 of file qcustomplot.cpp.
Friends And Related Function Documentation
◆ operator<<()
Prints range in a human readable format to the qDebug output.
Definition at line 820 of file qcustomplot.h.
Member Data Documentation
◆ maxRange

static 
Maximum values (negative and positive) the range will accept in rangechanging functions. Larger absolute values would cause errors due to the 11bit exponent of double precision numbers, corresponding to a maximum magnitude of roughly 1e308.
 Warning
 Do not use this constant to indicate "arbitrarily large" values in plotting logic (as values that will appear in the plot)! It is intended only as a bound to compare against, e.g. to prevent axis ranges from obtaining overflowing ranges.
 See also
 validRange, minRange
Definition at line 811 of file qcustomplot.h.
◆ minRange

static 
Minimum range size (upper  lower) the range changing functions will accept. Smaller intervals would cause errors due to the 11bit exponent of double precision numbers, corresponding to a minimum magnitude of roughly 1e308.
 Warning
 Do not use this constant to indicate "arbitrarily small" values in plotting logic (as values that will appear in the plot)! It is intended only as a bound to compare against, e.g. to prevent axis ranges from obtaining underflowing ranges.
 See also
 validRange, maxRange
Definition at line 810 of file qcustomplot.h.
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