QwtScaleDiv(3) | Qwt User's Guide | QwtScaleDiv(3) |
NAME¶
QwtScaleDiv -A class representing a scale division.
SYNOPSIS¶
#include <qwt_scale_div.h>
Public Types¶
enum TickType { NoTick = -1, MinorTick, MediumTick, MajorTick, NTickTypes }
Scale tick types.
Public Member Functions¶
QwtScaleDiv (double lowerBound=0.0, double upperBound=0.0)
QwtScaleDiv (const QwtInterval &, QList< double >[NTickTypes])
QwtScaleDiv (double lowerBound, double upperBound, QList< double >[NTickTypes])
QwtScaleDiv (double lowerBound, double upperBound, const QList< double > &minorTicks, const QList< double > &mediumTicks, const QList< double > &majorTicks)
bool operator== (const QwtScaleDiv &) const
Equality operator. bool operator!= (const QwtScaleDiv &) const
Inequality. void setInterval (double lowerBound, double upperBound)
void setInterval (const QwtInterval &)
QwtInterval interval () const
void setLowerBound (double)
double lowerBound () const
void setUpperBound (double)
double upperBound () const
double range () const
bool contains (double value) const
void setTicks (int tickType, const QList< double > &)
QList< double > ticks (int tickType) const
bool isEmpty () const
Check if the scale division is empty( lowerBound() == upperBound() ) bool isIncreasing () const
Check if the scale division is increasing( lowerBound() <= upperBound() ) void invert ()
QwtScaleDiv inverted () const
QwtScaleDiv bounded (double lowerBound, double upperBound) const
Detailed Description¶
A class representing a scale division.A Qwt scale is defined by its boundaries and 3 list for the positions of the major, medium and minor ticks.
The upperLimit() might be smaller than the lowerLimit() to indicate inverted scales.
Scale divisions can be calculated from a QwtScaleEngine.
See Also:
Member Enumeration Documentation¶
enum QwtScaleDiv::TickType¶
Scale tick types.Enumerator
- NoTick
- No ticks.
- MinorTick
- Minor ticks.
- MediumTick
- Medium ticks.
- MajorTick
- Major ticks.
- NTickTypes
- Number of valid tick types.
Constructor & Destructor Documentation¶
QwtScaleDiv::QwtScaleDiv (doublelowerBound = 0.0, doubleupperBound = 0.0) [explicit]¶
Construct a division without ticksParameters:
upperBound Second boundary
Note:
QwtScaleDiv::QwtScaleDiv (const QwtInterval &interval, QList< double >ticks[NTickTypes]) [explicit]¶
Construct a scale divisionParameters:
ticks List of major, medium and minor ticks
QwtScaleDiv::QwtScaleDiv (doublelowerBound, doubleupperBound, QList< double >ticks[NTickTypes]) [explicit]¶
Construct a scale divisionParameters:
upperBound Second boundary
ticks List of major, medium and minor ticks
Note:
QwtScaleDiv::QwtScaleDiv (doublelowerBound, doubleupperBound, const QList< double > &minorTicks, const QList< double > &mediumTicks, const QList< double > &majorTicks) [explicit]¶
Construct a scale divisionParameters:
upperBound Second boundary
minorTicks List of minor ticks
mediumTicks List medium ticks
majorTicks List of major ticks
Note:
Member Function Documentation¶
QwtScaleDiv QwtScaleDiv::bounded (doublelowerBound, doubleupperBound) const¶
Return a scale division with an interval [lowerBound, upperBound] where all ticks outside this interval are removedParameters:
upperBound Upper bound
Returns:
Note:
bool QwtScaleDiv::contains (doublevalue) const¶
Return if a value is between lowerBound() and upperBound()Parameters:
Returns:
QwtInterval QwtScaleDiv::interval () const¶
Returns:void QwtScaleDiv::invert ()¶
Invert the scale divisionSee Also:
QwtScaleDiv QwtScaleDiv::inverted () const¶
Returns:See Also:
double QwtScaleDiv::lowerBound () const¶
Returns:See Also:
bool QwtScaleDiv::operator!= (const QwtScaleDiv &other) const¶
Inequality.Returns:
bool QwtScaleDiv::operator== (const QwtScaleDiv &other) const¶
Equality operator.Returns:
double QwtScaleDiv::range () const¶
Returns:void QwtScaleDiv::setInterval (doublelowerBound, doubleupperBound)¶
Change the intervalParameters:
upperBound Second boundary
Note:
void QwtScaleDiv::setInterval (const QwtInterval &interval)¶
Change the intervalParameters:
void QwtScaleDiv::setLowerBound (doublelowerBound)¶
Set the first boundaryParameters:
See Also:
void QwtScaleDiv::setTicks (inttype, const QList< double > &ticks)¶
Assign ticksParameters:
ticks Values of the tick positions
void QwtScaleDiv::setUpperBound (doubleupperBound)¶
Set the second boundaryParameters:
See Also:
QList< double > QwtScaleDiv::ticks (inttype) const¶
Return a list of ticksParameters:
Returns:
double QwtScaleDiv::upperBound () const¶
Returns:See Also:
Author¶
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