Qwt3DLinearScale Class Reference

The standard (1:1) mapping class for axis numbering. More...

#include <qwt3d_scale.h>

Inheritance diagram for Qwt3DLinearScale:

Classes
class	PrivateData

Protected Member Functions
	Qwt3DLinearScale ()
	Applies Qwt3DLinearAutoScaler::execute() for autoscaling.
int	autoscale (double &a, double &b, double start, double stop, int ivals) override
	Autoscales the axis.
Qwt3DScale *	clone () const override
	Returns a new heap based object utilized from Qwt3DClonePtr.
void	calculate () override
	Creates the major and minor vector for the scale.
void	copyLinearScaleState (const Qwt3DLinearScale &other)
	Copies the linear autoscaler state from another Qwt3DLinearScale.
Protected Member Functions inherited from Qwt3DScale
virtual QString	ticLabel (unsigned int idx) const
	Maps the double value at tic-position idx to a final representation.
virtual void	setLimits (double start, double stop)
	Sets start and stop value for the scale.
virtual void	setMajors (int val)
	Sets number of major intervals.
virtual void	setMinors (int val)
	Sets number of minor intervals per major interval.
virtual void	setMajorLimits (double start, double stop)
	Sets value of first and last major tic.
int	majors () const
	Returns major intervals.
int	minors () const
	Returns minor intervals.
const std::vector< double > &	majorTicks () const
	Returns const reference to major tic positions.
const std::vector< double > &	minorTicks () const
	Returns const reference to minor tic positions.
void	copyFrom (const Qwt3DScale &other)
	Copies Qwt3DScale base state from another Qwt3DScale.

Friends
class	Qwt3DAxis
class	Qwt3DClonePtr< Qwt3DScale >

Detailed Description

The standard (1:1) mapping class for axis numbering.

Constructor & Destructor Documentation

Qwt3DLinearScale()

Qwt3DLinearScale::Qwt3DLinearScale ( )

protected

Applies Qwt3DLinearAutoScaler::execute() for autoscaling.

Parameters

[out]	a	First major tic after autoscaling
[out]	b	Last major tic after autoscaling
	start	Scale begin
	stop	Scale end
	ivals	Requested number of major intervals

Returns

Number of major intervals after autoscaling

Member Function Documentation

autoscale()

int Qwt3DLinearScale::autoscale ( double &  a, double &  b, double  start, double  stop, int  ivals  )

overrideprotectedvirtual

Autoscales the axis.

Parameters

[out]	a	First major tic after applying autoscaling
[out]	b	Last major tic after applying autoscaling
	start	Scale begin
	stop	Scale end
	ivals	Requested number of major intervals

Returns

Number of major intervals after autoscaling

The default implementation sets a=start, b=stop and returns ivals.

Reimplemented from Qwt3DScale.

calculate()

void Qwt3DLinearScale::calculate ( )

overrideprotectedvirtual

Creates the major and minor vector for the scale.

Implements Qwt3DScale.

clone()

Qwt3DScale * Qwt3DLinearScale::clone ( ) const

overrideprotectedvirtual

Returns a new heap based object utilized from Qwt3DClonePtr.

Returns

A new Qwt3DLinearScale copy

Implements Qwt3DScale.

Reimplemented in Qwt3DTextScale.

copyLinearScaleState()

void Qwt3DLinearScale::copyLinearScaleState ( const Qwt3DLinearScale &  other )

protected

Copies the linear autoscaler state from another Qwt3DLinearScale.

Parameters

other

Source scale to copy from

Qwt3DLinearScale is a friend of Qwt3DLinearAutoScaler, so this protected member gives derived scales (e.g. Qwt3DTextScale) access to the autoscaler state copy inside their clone() overrides.

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The documentation for this class was generated from the following files:

• /home/runner/work/QWT/QWT/src/plot3d/qwt3d_scale.h
• /home/runner/work/QWT/QWT/src/plot3d/qwt3d_scale.cpp