A scale engine for reciprocal (1/t) scales.
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#include <ReciprocalScaleEngine.h>
List of all members.
Public Member Functions |
virtual void | autoScale (int maxSteps, double &x1, double &x2, double &stepSize) const |
virtual QwtScaleDiv | divideScale (double x1, double x2, int numMajorSteps, int numMinorSteps, double stepSize=0.0) const |
| Calculate a scale division.
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virtual QwtScaleTransformation * | transformation () const |
Protected Member Functions |
QwtDoubleInterval | align (const QwtDoubleInterval &, double stepSize) const |
| Align an interval to a step size.
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Private Member Functions |
QwtValueList | buildMajorTicks (const QwtDoubleInterval &interval, double stepSize) const |
void | buildMinorTicks (const QwtValueList &majorTicks, int maxMinMark, double step, QwtValueList &, QwtValueList &) const |
void | buildTicks (const QwtDoubleInterval &, double stepSize, int maxMinSteps, QwtValueList ticks[QwtScaleDiv::NTickTypes]) const |
Detailed Description
A scale engine for reciprocal (1/t) scales.
Member Function Documentation
QwtDoubleInterval ReciprocalScaleEngine::align |
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const QwtDoubleInterval & |
interval, |
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double |
stepSize |
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| const |
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protected |
Align an interval to a step size.
The limits of an interval are aligned that both are integer multiples of the step size.
- Parameters:
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interval | Interval |
stepSize | Step size |
- Returns:
- Aligned interval
Referenced by autoScale(), and buildTicks().
void ReciprocalScaleEngine::autoScale |
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int |
maxNumSteps, |
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double & |
x1, |
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double & |
x2, |
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double & |
stepSize |
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| const |
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virtual |
Align and divide an interval
- Parameters:
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maxNumSteps | Max. number of steps |
x1 | First limit of the interval (In/Out) |
x2 | Second limit of the interval (In/Out) |
stepSize | Step size (Out) |
References align().
QwtValueList ReciprocalScaleEngine::buildMajorTicks |
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const QwtDoubleInterval & |
interval, |
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double |
stepSize |
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) |
| const |
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private |
void ReciprocalScaleEngine::buildMinorTicks |
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const QwtValueList & |
majorTicks, |
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int |
maxMinMark, |
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double |
step, |
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QwtValueList & |
minorTicks, |
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QwtValueList & |
mediumTicks |
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) |
| const |
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private |
void ReciprocalScaleEngine::buildTicks |
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const QwtDoubleInterval & |
interval, |
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double |
stepSize, |
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int |
maxMinSteps, |
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QwtValueList |
ticks[QwtScaleDiv::NTickTypes] |
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) |
| const |
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private |
QwtScaleDiv ReciprocalScaleEngine::divideScale |
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double |
x1, |
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double |
x2, |
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int |
maxMajSteps, |
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int |
maxMinSteps, |
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double |
stepSize = 0.0 |
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) |
| const |
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virtual |
Calculate a scale division.
- Parameters:
-
x1 | First interval limit |
x2 | Second interval limit |
maxMajSteps | Maximum for the number of major steps |
maxMinSteps | Maximum number of minor steps |
stepSize | Step size. If stepSize == 0, the scaleEngine calculates one. |
- See also:
- QwtScaleEngine::stepSize(), QwtScaleEngine::subDivide()
References buildTicks().
QwtScaleTransformation * ReciprocalScaleEngine::transformation |
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const |
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virtual |
Return a dummy transformation
The documentation for this class was generated from the following files: