QwtPowerTransform(3)

📦
version 6.3.0 · 4 versions
, in alpine 3.24

💅 QwtPowerTransform — QwtPowerTransform(3) 💅

Okay bestie, welcome to the Library Functions Manual page for QwtPowerTransform — manual name QwtPowerTransform(3), and yes, this is the whole vibe.

💖 NAME 💖

QwtPowerTransform — a transformation using pow(). That’s the name blurb, and it ate. 💅

🦋 SYNOPSIS 🦋

#include <qwt_transform.h>

Inherits QwtTransform.

✨ Public Member Functions ✨

  • QwtPowerTransform (double exponent) — constructor with an exponent.
  • virtual ~QwtPowerTransform () — Destructor.
  • virtual double transform (double value) const override — transforms a value.
  • virtual double invTransform (double value) const override — inverse-transforms a value.
  • virtual QwtTransform * copy () const override — returns a clone of the transformation.

🌈 Public Member Functions inherited from QwtTransform 🌈

  • QwtTransform () — Constructor.
  • virtual ~QwtTransform () — Destructor.
  • virtual double bounded (double value) const — signature listed here, no extra description on this page.

🌸 Detailed Description 🌸

Okay so QwtPowerTransform is literally a transformation using pow(). It preserves the sign of a value — yes bestie, the sign stays intact. F.e. a transformation with a factor of 2 transforms a value of -3 to -9 and v.v. (vice versa). So QwtPowerTransform can be used for scales including negative values. No cap.

Definition at line 125 of file qwt_transform.h.

🛠️ Constructor & Destructor Documentation 🛠️

🧚 QwtPowerTransform::QwtPowerTransform (double exponent) [explicit]

Constructor.

Parameters:

  • exponent — Exponent.

Definition at line 121 of file qwt_transform.cpp.

🫶 QwtPowerTransform::~QwtPowerTransform () [virtual]

Destructor.

Definition at line 128 of file qwt_transform.cpp.

🔥 Member Function Documentation 🔥

👑 QwtTransform * QwtPowerTransform::copy () const [override], [virtual]

Returns: Clone of the transformation.

Implements QwtTransform.

Definition at line 158 of file qwt_transform.cpp.

🦋 double QwtPowerTransform::invTransform (double value) const [override], [virtual]

Parameters:

  • value — Value to be transformed.

Returns: Inverse exponentiation preserving the sign.

Implements QwtTransform.

Definition at line 149 of file qwt_transform.cpp.

⭐ double QwtPowerTransform::transform (double value) const [override], [virtual]

Parameters:

  • value — Value to be transformed.

Returns: Exponentiation preserving the sign.

Implements QwtTransform.

Definition at line 136 of file qwt_transform.cpp.

👑 Author 👑

Generated automatically by Doxygen for Qwt User's Guide from the source code.

Okay that’s the whole page, bestie 💖 Source/version: Qwt User's Guide; manual: QwtPowerTransform(3); date: none shown in the footer — Doxygen-generated from the source code, periodt. 💅

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