QwtScaleDiv Class Reference

List of all members.

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Detailed Description

A class representing a scale division.

A scale division consists of its limits and 3 list of tick values qualified as major, medium and minor ticks.

In most cases scale divisions are calculated by a QwtScaleEngine.

See also:

QwtScaleEngine::subDivideInto, QwtScaleEngine::subDivide

Definition at line 29 of file qwt_scale_div.h.

Public Types
enum	TickType {   NoTick = -1,   MinorTick,   MediumTick,   MajorTick,   NTickTypes }
Public Member Functions
	QwtScaleDiv ()
	QwtScaleDiv (const QwtDoubleInterval &, QwtValueList[NTickTypes])
	QwtScaleDiv (double lBound, double rBound, QwtValueList[NTickTypes])
int	operator== (const QwtScaleDiv &s) const
int	operator!= (const QwtScaleDiv &s) const
double	lBound () const
double	hBound () const
double	range () const
bool	contains (double v) const
const QwtValueList &	ticks (int type) const
void	invalidate ()
bool	isValid () const
void	invert ()

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Constructor & Destructor Documentation

QwtScaleDiv::QwtScaleDiv (   )  [explicit]

Construct an invalid QwtScaleDiv instance. Definition at line 15 of file qwt_scale_div.cpp.

QwtScaleDiv::QwtScaleDiv (  const QwtDoubleInterval &  interval, QwtValueList  ticks[NTickTypes] )  [explicit]

Construct QwtScaleDiv instance. Parameters: interval  Interval ticks  List of major, medium and minor ticks Definition at line 28 of file qwt_scale_div.cpp. References ticks().

QwtScaleDiv::QwtScaleDiv (  double  lBound, double  hBound, QwtValueList  ticks[NTickTypes] )  [explicit]

Construct QwtScaleDiv instance. Parameters: lBound  First interval limit hBound  Second interval limit ticks  List of major, medium and minor ticks Definition at line 46 of file qwt_scale_div.cpp. References ticks().

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Member Function Documentation

double QwtScaleDiv::hBound (   )  const [inline]

Returns: right bound See also: QwtScaleDiv::lBound Definition at line 86 of file qwt_scale_div.h. Referenced by QwtPlot::canvasMap(), QwtPlotPanner::moveCanvas(), QwtPlotZoomer::rescale(), and QwtAbstractScaleDraw::setScaleDiv().

void QwtScaleDiv::invalidate (   )

Invalidate the scale division. Definition at line 89 of file qwt_scale_div.cpp.

void QwtScaleDiv::invert (   )

Invert the scale divison. Definition at line 118 of file qwt_scale_div.cpp. References ticks(). Referenced by QwtLog10ScaleEngine::divideScale().

bool QwtScaleDiv::isValid (   )  const

Check if the scale division is valid. Definition at line 101 of file qwt_scale_div.cpp.

double QwtScaleDiv::lBound (   )  const [inline]

Returns: left bound See also: QwtScaleDiv::hBound Definition at line 77 of file qwt_scale_div.h. Referenced by QwtPlot::canvasMap(), QwtPlotPanner::moveCanvas(), QwtPlotZoomer::rescale(), QwtPlotMagnifier::rescale(), QwtPlotPicker::scaleRect(), and QwtAbstractScaleDraw::setScaleDiv().

int QwtScaleDiv::operator!= (  const QwtScaleDiv &  s  )  const

Inequality. Returns: true if this instance is not equal to s Definition at line 83 of file qwt_scale_div.cpp.

int QwtScaleDiv::operator== (  const QwtScaleDiv &  other  )  const

Equality operator. Returns: true if this instance is equal to other Definition at line 61 of file qwt_scale_div.cpp. References d_hBound, d_isValid, d_lBound, and d_ticks.

double QwtScaleDiv::range (   )  const [inline]

Returns: hBound() - lBound() Definition at line 94 of file qwt_scale_div.h. Referenced by QwtPlotPicker::scaleRect().

const QwtValueList & QwtScaleDiv::ticks (  int  type  )  const

Return a list of ticks Parameters: type  MinorTick, MediumTick or MajorTick Definition at line 139 of file qwt_scale_div.cpp. Referenced by QwtRoundScaleDraw::extent(), QwtScaleDraw::getBorderDistHint(), invert(), QwtScaleDraw::maxLabelHeight(), QwtScaleDraw::maxLabelWidth(), QwtScaleDraw::minLabelDist(), QwtScaleDraw::minLength(), QwtScaleDiv(), and QwtPlot::sizeHint().

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