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QwtDoubleInterval
Langue: en
Version: 121624 (mandriva - 01/05/08)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Constructor & Destructor Documentation
- Member Function Documentation
- bool QwtDoubleInterval::contains (double value) const
- QwtDoubleInterval QwtDoubleInterval::extend (double value) const
- QwtDoubleInterval QwtDoubleInterval::intersect (const QwtDoubleInterval &) const
- bool QwtDoubleInterval::intersects (const QwtDoubleInterval & interval) const
- void QwtDoubleInterval::invalidate () [inline]
- QwtDoubleInterval QwtDoubleInterval::inverted () const
- bool QwtDoubleInterval::isNull () const [inline]
- bool QwtDoubleInterval::isValid () const [inline]
- QwtDoubleInterval QwtDoubleInterval::limited (double lBound, double hBound) const
- double QwtDoubleInterval::maxValue () const [inline]
- double QwtDoubleInterval::minValue () const [inline]
- QwtDoubleInterval QwtDoubleInterval::normalized () const
- QwtDoubleInterval QwtDoubleInterval::operator & (const QwtDoubleInterval & interval) const [inline]
- int QwtDoubleInterval::operator!= (const QwtDoubleInterval &) const [inline]
- int QwtDoubleInterval::operator== (const QwtDoubleInterval &) const [inline]
- QwtDoubleInterval QwtDoubleInterval::operator| (double value) const [inline]
- QwtDoubleInterval QwtDoubleInterval::operator| (const QwtDoubleInterval & interval) const [inline]
- void QwtDoubleInterval::setInterval (double minValue, double maxValue) [inline]
- void QwtDoubleInterval::setMaxValue (double maxValue) [inline]
- void QwtDoubleInterval::setMinValue (double minValue) [inline]
- QwtDoubleInterval QwtDoubleInterval::symmetrize (double value) const
- QwtDoubleInterval QwtDoubleInterval::unite (const QwtDoubleInterval &) const
- double QwtDoubleInterval::width () const [inline]
- Author
NAME
QwtDoubleInterval -SYNOPSIS
Detailed Description
A class representing an interval.
The interval is represented by 2 doubles, the lower and the upper limit.
Definition at line 21 of file qwt_double_interval.h.
Public Member Functions
QwtDoubleInterval ()
QwtDoubleInterval (double minValue, double maxValue)
void setInterval (double minValue, double maxValue)
QwtDoubleInterval normalized () const
QwtDoubleInterval inverted () const
QwtDoubleInterval limited (double minValue, double maxValue) const
int operator== (const QwtDoubleInterval &) const
int operator!= (const QwtDoubleInterval &) const
double minValue () const
double maxValue () const
double width () const
void setMinValue (double)
void setMaxValue (double)
bool contains (double value) const
bool intersects (const QwtDoubleInterval &) const
QwtDoubleInterval intersect (const QwtDoubleInterval &) const
QwtDoubleInterval unite (const QwtDoubleInterval &) const
QwtDoubleInterval operator| (const QwtDoubleInterval &) const
QwtDoubleInterval operator & (const QwtDoubleInterval &) const
QwtDoubleInterval & operator|= (const QwtDoubleInterval &)
QwtDoubleInterval & operator &= (const QwtDoubleInterval &)
QwtDoubleInterval extend (double value) const
QwtDoubleInterval operator| (double) const
QwtDoubleInterval & operator|= (double)
bool isValid () const
bool isNull () const
void invalidate ()
QwtDoubleInterval symmetrize (double value) const
Constructor & Destructor Documentation
QwtDoubleInterval::QwtDoubleInterval () [inline]
Default Constructor.
Creates an invalid interval [0.0, -1.0]
See also:
- setInterval, isValid
Definition at line 77 of file qwt_double_interval.h.
Referenced by extend(), intersect(), inverted(), limited(), normalized(), symmetrize(), and unite().
QwtDoubleInterval::QwtDoubleInterval (double minValue, double maxValue) [inline]
Constructor
Parameters:
- minValue Minimum value
maxValue Maximum value
Definition at line 89 of file qwt_double_interval.h.
Member Function Documentation
bool QwtDoubleInterval::contains (double value) const
Test if a value is inside an interval
Parameters:
- value Value
Returns:
- true, if value >= minValue() && value <= maxValue()
Definition at line 54 of file qwt_double_interval.cpp.
References isValid().
QwtDoubleInterval QwtDoubleInterval::extend (double value) const
Extend the interval
If value is below minValue, value becomes the lower limit. If value is above maxValue, value becomes the upper limit.
extend has no effect for invalid intervals
Parameters:
- value Value
See also:
- isValid
Definition at line 185 of file qwt_double_interval.cpp.
References isValid(), and QwtDoubleInterval().
Referenced by QwtLog10ScaleEngine::autoScale(), QwtLinearScaleEngine::autoScale(), and operator|().
QwtDoubleInterval QwtDoubleInterval::intersect (const QwtDoubleInterval &) const
Intersect 2 intervals.
Definition at line 83 of file qwt_double_interval.cpp.
References isValid(), maxValue(), minValue(), and QwtDoubleInterval().
Referenced by operator &().
bool QwtDoubleInterval::intersects (const QwtDoubleInterval & interval) const
Test if two intervals overlap
Definition at line 119 of file qwt_double_interval.cpp.
References isValid(), maxValue(), and minValue().
void QwtDoubleInterval::invalidate () [inline]
Invalidate the interval
The limits are set to interval [0.0, -1.0]
See also:
- isValid
Definition at line 211 of file qwt_double_interval.h.
QwtDoubleInterval QwtDoubleInterval::inverted () const
Invert the limits of the interval
Returns:
- Inverted interval
See also:
- normalized
Definition at line 43 of file qwt_double_interval.cpp.
References QwtDoubleInterval().
bool QwtDoubleInterval::isNull () const [inline]
Returns:
- true, if minValue() >= maxValue()
Definition at line 194 of file qwt_double_interval.h.
bool QwtDoubleInterval::isValid () const [inline]
Returns:
- true, if minValue() <= maxValue()
Definition at line 200 of file qwt_double_interval.h.
Referenced by QwtLinearColorMap::colorIndex(), QwtColorMap::colorTable(), QwtScaleEngine::contains(), contains(), QwtRasterData::contourLines(), extend(), intersect(), intersects(), limited(), normalized(), QwtAlphaColorMap::rgb(), QwtScaleEngine::strip(), symmetrize(), unite(), and width().
QwtDoubleInterval QwtDoubleInterval::limited (double lBound, double hBound) const
Limit the interval
Parameters:
- lBound Lower limit
hBound Upper limit
Returns:
- Limited interval
Definition at line 159 of file qwt_double_interval.cpp.
References isValid(), maxValue(), minValue(), and QwtDoubleInterval().
Referenced by QwtLog10ScaleEngine::autoScale(), and QwtLog10ScaleEngine::divideScale().
double QwtDoubleInterval::maxValue () const [inline]
Returns:
- Upper limit of the interval
Definition at line 134 of file qwt_double_interval.h.
Referenced by QwtLinearScaleEngine::align(), QwtLog10ScaleEngine::autoScale(), QwtLinearScaleEngine::autoScale(), QwtLinearColorMap::colorIndex(), QwtScaleEngine::contains(), QwtLog10ScaleEngine::divideScale(), intersect(), intersects(), limited(), QwtLog10ScaleEngine::log10(), QwtLog10ScaleEngine::pow10(), QwtAbstractScale::setScale(), and unite().
double QwtDoubleInterval::minValue () const [inline]
Returns:
- Lower limit of the interval
Definition at line 128 of file qwt_double_interval.h.
Referenced by QwtLinearScaleEngine::align(), QwtLog10ScaleEngine::autoScale(), QwtLinearScaleEngine::autoScale(), QwtLinearColorMap::colorIndex(), QwtColorMap::colorTable(), QwtScaleEngine::contains(), QwtLog10ScaleEngine::divideScale(), intersect(), intersects(), limited(), QwtLog10ScaleEngine::log10(), QwtLog10ScaleEngine::pow10(), QwtAlphaColorMap::rgb(), QwtLinearColorMap::rgb(), QwtAbstractScale::setScale(), and unite().
QwtDoubleInterval QwtDoubleInterval::normalized () const
Normalize the limits of the interval.
If maxValue() > minValue() the limits will be inverted.
Returns:
- Normalized interval
See also:
- isValid, inverted
Definition at line 28 of file qwt_double_interval.cpp.
References isValid(), and QwtDoubleInterval().
Referenced by QwtLinearScaleEngine::autoScale(), and QwtLog10ScaleEngine::divideScale().
QwtDoubleInterval QwtDoubleInterval::operator & (const QwtDoubleInterval & interval) const [inline]
Intersection of two intervals
See also:
- intersect
Definition at line 155 of file qwt_double_interval.h.
References intersect().
int QwtDoubleInterval::operator!= (const QwtDoubleInterval &) const [inline]
Compare two intervals.
Definition at line 179 of file qwt_double_interval.h.
int QwtDoubleInterval::operator== (const QwtDoubleInterval &) const [inline]
Compare two intervals.
Definition at line 172 of file qwt_double_interval.h.
References d_maxValue, and d_minValue.
QwtDoubleInterval QwtDoubleInterval::operator| (double value) const [inline]
Extend an interval
See also:
- extend
Definition at line 188 of file qwt_double_interval.h.
References extend().
QwtDoubleInterval QwtDoubleInterval::operator| (const QwtDoubleInterval & interval) const [inline]
Union of two intervals
See also:
- unite
Definition at line 165 of file qwt_double_interval.h.
References unite().
void QwtDoubleInterval::setInterval (double minValue, double maxValue) [inline]
Assign the limits of the interval
Parameters:
- minValue Minimum value
maxValue Maximum value
Definition at line 101 of file qwt_double_interval.h.
Referenced by QwtLog10ScaleEngine::autoScale().
void QwtDoubleInterval::setMaxValue (double maxValue) [inline]
Assign the upper limit of the interval
Parameters:
- maxValue Maximum value
Definition at line 122 of file qwt_double_interval.h.
Referenced by QwtLinearScaleEngine::autoScale().
void QwtDoubleInterval::setMinValue (double minValue) [inline]
Assign the lower limit of the interval
Parameters:
- minValue Minimum value
Definition at line 112 of file qwt_double_interval.h.
Referenced by QwtLinearScaleEngine::autoScale().
QwtDoubleInterval QwtDoubleInterval::symmetrize (double value) const
Adjust the limit that is closer to value, so that value becomes the center of the interval.
Parameters:
- value Center
Returns:
- Interval with value as center
Definition at line 140 of file qwt_double_interval.cpp.
References isValid(), and QwtDoubleInterval().
Referenced by QwtLinearScaleEngine::autoScale().
QwtDoubleInterval QwtDoubleInterval::unite (const QwtDoubleInterval &) const
Unite 2 intervals.
Definition at line 63 of file qwt_double_interval.cpp.
References isValid(), maxValue(), minValue(), and QwtDoubleInterval().
Referenced by operator|().
double QwtDoubleInterval::width () const [inline]
Return the width of an interval The width of invalid intervals is 0.0, otherwise the result is maxValue() - minValue().
See also:
- isValid
Definition at line 146 of file qwt_double_interval.h.
References isValid().
Referenced by QwtLog10ScaleEngine::autoScale(), QwtLinearScaleEngine::autoScale(), QwtLinearColorMap::colorIndex(), QwtColorMap::colorTable(), QwtScaleEngine::contains(), QwtLog10ScaleEngine::divideScale(), QwtLinearScaleEngine::divideScale(), QwtAlphaColorMap::rgb(), and QwtLinearColorMap::rgb().
Author
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