QwtLog10ScaleEngine(3)

📦 version 5.2.3a, in epel 9, fedora 43, fedora 44

💖 QwtLog10ScaleEngine — the Qwt User's Guide, but make it make sense 💖

okay bestie, sit down, hydrate, because we're talking about QwtLog10ScaleEngine from the Qwt User's Guide and honestly? she's an icon. 💅

✨ NAME ✨

QwtLog10ScaleEngine — no cap, that's literally the whole name. The manpage didn't give her a tagline, she's just out here existing in the Qwt User's Guide. 👑

🌸 SYNOPSIS 🌸

First thing's first, you gotta pull her in:

#include <qwt_scale_engine.h>

She Inherits QwtScaleEngine. Family lineage? Immaculate. 🧬

🎀 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
  • virtual QwtScaleTransformation * transformation () const

🦋 Protected Member Functions 🦋

  • QwtDoubleInterval log10 (const QwtDoubleInterval &) const
  • QwtDoubleInterval pow10 (const QwtDoubleInterval &) const

⭐ Additional Inherited Members ⭐

(yes, she comes with extras from her parent, we love an inheritance moment 🫶)

🌈 Detailed Description 🌈

A scale engine for logarithmic (base 10) scales. it's giving math but make it aesthetic ✨

The step size is measured in decades — aight, the major step size will be adjusted to fit the pattern $t 1,2,3,5. periodt.

⚠️ Warning: the step size as well as the margins are measured in decades. like, don't come for her when your margins are doing decade math, that's literally the design. 💀

👑 Member Function Documentation 👑

💜 void QwtLog10ScaleEngine::autoScale (int maxNumSteps, double &x1, double &x2, double &stepSize) const [virtual]

Align and divide an interval. she's organizing, she's aligning, she's dividing — main character energy fr fr. 💅

Parameters:

  • 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)

See also: QwtScaleEngine::setAttribute()

Implements QwtScaleEngine.

💖 QwtScaleDiv QwtLog10ScaleEngine::divideScale (double x1, double x2, int maxMajSteps, int maxMinSteps, double stepSize = 0.0) const [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(), QwtLog10ScaleEngine::subDivide()

Implements QwtScaleEngine.

🌸 QwtDoubleInterval QwtLog10ScaleEngine::log10 (const QwtDoubleInterval &interval) const [protected]

Return the interval [log10(interval.minValue(), log10(interval.maxValue]

(that bracket situation is exactly how the manpage wrote it, bestie — not me, I'm just the messenger 🫣)

🦋 QwtDoubleInterval QwtLog10ScaleEngine::pow10 (const QwtDoubleInterval &interval) const [protected]

Return the interval [pow10(interval.minValue(), pow10(interval.maxValue]

(same bracket lore as above, we keep it faithful ✨)

⭐ QwtScaleTransformation * QwtLog10ScaleEngine::transformation () const [virtual]

Return a transformation, for logarithmic (base 10) scales. the way she transforms… 💫

Implements QwtScaleEngine.

🍓 Author 🍓

Generated automatically by Doxygen for Qwt User's Guide from the source code. no human author, just robot labor and vibes. 🤖✨

🎀 cute sign-off 🎀

and that's the whole page, bestie!! this one's from Qwt User's Guide, Version 5.2.3, dated Tue Nov 20 2012 — an oldie but a goodie, lowkey a vintage icon. go forth and log-scale responsibly. iykyk 💅💖🌸🦋✨👑

📦 where this page comes from