NAME¶

QwtScaleTransformation - Operations for linear or logarithmic (base 10) transformations.

SYNOPSIS¶

#include <qwt_scale_map.h>

Public Types¶

enum Type { Linear, Log10, Other }

Public Member Functions¶

QwtScaleTransformation (Type type) virtual ~QwtScaleTransformation () virtual double xForm (double x, double s1, double s2, double p1, double p2) const virtual double invXForm (double x, double s1, double s2, double p1, double p2) const Type type () const virtual QwtScaleTransformation * copy () const

Detailed Description¶

Operations for linear or logarithmic (base 10) transformations.

Member Enumeration Documentation¶

enum QwtScaleTransformation::Type¶

Transformation type. Enumerator:

Linear

Transformation between 2 linear scales.

Log10

Transformation between a linear and a logarithmic ( base 10 ) scale.

Other

Any other type of transformation.

Constructor & Destructor Documentation¶

QwtScaleTransformation::QwtScaleTransformation (Typetype)¶

Constructor for a linear transformation.

QwtScaleTransformation::~QwtScaleTransformation () [virtual]¶

Destructor.

Member Function Documentation¶

QwtScaleTransformation * QwtScaleTransformation::copy () const [virtual]¶

Create a clone of the transformation.

double QwtScaleTransformation::invXForm (doublep, doublep1, doublep2, doubles1, doubles2) const [virtual]¶

Transform a value from a linear to a logarithmic interval. Parameters: Returns:

QwtScaleTransformation::Type QwtScaleTransformation::type () const [inline] Returns:¶

double QwtScaleTransformation::xForm (doubles, doubles1, doubles2, doublep1, doublep2) const [virtual]¶

Transform a value between 2 linear intervals. Parameters: Returns:

Author¶

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