QwtPlotGrid(3)

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

✨ QwtPlotGrid 💅

okay bestie, welcome to the QwtPlotGrid(3) page from the Qwt User's Guide — this is the class that draws your coordinate grid, and honestly? she's iconic. no cap.

🌸 NAME 🌸

QwtPlotGrid — the class that draws a coordinate grid. that's the whole vibe. 🎀

🦋 SYNOPSIS 🦋

#include <qwt_plot_grid.h>

Inherits QwtPlotItem.

💖 Public Member Functions 💖

  • QwtPlotGrid ()
  • virtual ~QwtPlotGrid ()
  • virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &rect) const
  • void enableX (bool tf)
  • void enableXMin (bool tf)
  • void enableY (bool tf)
  • void enableYMin (bool tf)
  • const QPen & majPen () const
  • const QPen & minPen () const
  • virtual int rtti () const
  • void setMajPen (const QPen &p)
  • void setMinPen (const QPen &p)
  • void setPen (const QPen &p)
  • void setXDiv (const QwtScaleDiv &sx)
  • void setYDiv (const QwtScaleDiv &sy)
  • virtual void updateScaleDiv (const QwtScaleDiv &xMap, const QwtScaleDiv &yMap)
  • bool xEnabled () const
  • bool xMinEnabled () const
  • const QwtScaleDiv & xScaleDiv () const
  • bool yEnabled () const
  • bool yMinEnabled () const
  • const QwtScaleDiv & yScaleDiv () const

🌈 Additional Inherited Members 🌈

(yes bestie, she comes with extras from QwtPlotItem — inherited members are right there waiting for you.)

👑 Detailed Description 👑

A class which draws a coordinate grid. literally her whole personality. ✨

The QwtPlotGrid class can be used to draw a coordinate grid. A coordinate grid consists of major and minor vertical and horizontal gridlines. The locations of the gridlines are determined by the X and Y scale divisions which can be assigned with setXDiv() and setYDiv(). The draw() member draws the grid within a bounding rectangle.

🎀 Member Function Documentation 🎀

💜 void QwtPlotGrid::draw (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRect &canvasRect) const [virtual]

Draw the grid. she gets drawn into the bounding rectangle such that gridlines begin and end at the rectangle's borders. The X and Y maps are used to map the scale divisions into the drawing region screen.

Parameters:

  • painter — Painter
  • xMap — X axis map
  • yMap — Y axis
  • canvasRect — Contents rect of the plot canvas

Implements QwtPlotItem.

💜 void QwtPlotGrid::enableX (bool tf)

Enable or disable vertical gridlines.

Parameters:

  • tf — Enable (true) or disable

See also:

Minor gridlines can be enabled or disabled with enableXMin()

💜 void QwtPlotGrid::enableXMin (bool tf)

Enable or disable minor vertical gridlines.

Parameters:

  • tf — Enable (true) or disable

See also:

enableX()

💜 void QwtPlotGrid::enableY (bool tf)

Enable or disable horizontal gridlines.

Parameters:

  • tf — Enable (true) or disable

See also:

Minor gridlines can be enabled or disabled with enableYMin()

💜 void QwtPlotGrid::enableYMin (bool tf)

Enable or disable minor horizontal gridlines.

Parameters:

  • tf — Enable (true) or disable

See also:

enableY()

💜 const QPen & QwtPlotGrid::majPen () const

Returns:

the pen for the major gridlines

See also:

setMajPen(), setMinPen(), setPen()

💜 const QPen & QwtPlotGrid::minPen () const

Returns:

the pen for the minor gridlines

See also:

setMinPen(), setMajPen(), setPen()

💜 int QwtPlotGrid::rtti () const [virtual]

Returns:

QwtPlotItem::Rtti_PlotGrid

Reimplemented from QwtPlotItem.

💜 void QwtPlotGrid::setMajPen (const QPen &pen)

Assign a pen for the major gridlines 💅

The width of non cosmetic pens is scaled according to the resolution of the paint device.

Parameters:

  • pen — Pen

See also:

majPen(), setMinPen(), setPen(), QwtPainter::scaledPen()

💜 void QwtPlotGrid::setMinPen (const QPen &pen)

Assign a pen for the minor gridlines 💅

The width of non cosmetic pens is scaled according to the resolution of the paint device.

Parameters:

  • pen — Pen

See also:

minPen(), setMajPen(), setPen(), QwtPainter::scaledPen()

💜 void QwtPlotGrid::setPen (const QPen &pen)

Assign a pen for both major and minor gridlines 💅 (one pen to serve them all, periodt)

The width of non cosmetic pens is scaled according to the resolution of the paint device.

Parameters:

  • pen — Pen

See also:

setMajPen(), setMinPen(), QwtPainter::scaledPen()

💜 void QwtPlotGrid::setXDiv (const QwtScaleDiv &scaleDiv)

Assign an x axis scale division

Parameters:

  • scaleDiv — Scale division

💜 void QwtPlotGrid::setYDiv (const QwtScaleDiv &scaleDiv)

Assign a y axis division

Parameters:

  • scaleDiv — Scale division

💜 void QwtPlotGrid::updateScaleDiv (const QwtScaleDiv &xScaleDiv, const QwtScaleDiv &yScaleDiv) [virtual]

Update the grid to changes of the axes scale division

Parameters:

  • xScaleDiv — Scale division of the x-axis
  • yScaleDiv — Scale division of the y-axis

See also:

QwtPlot::updateAxes()

Reimplemented from QwtPlotItem.

💜 bool QwtPlotGrid::xEnabled () const

Returns:

true if vertical gridlines are enabled

See also:

enableX()

💜 bool QwtPlotGrid::xMinEnabled () const

Returns:

true if minor vertical gridlines are enabled

See also:

enableXMin()

💜 const QwtScaleDiv & QwtPlotGrid::xScaleDiv () const

Returns:

the scale division of the x axis

💜 bool QwtPlotGrid::yEnabled () const

Returns:

true if horizontal gridlines are enabled

See also:

enableY()

💜 bool QwtPlotGrid::yMinEnabled () const

Returns:

true if minor horizontal gridlines are enabled

See also:

enableYMin()

💜 const QwtScaleDiv & QwtPlotGrid::yScaleDiv () const

Returns:

the scale division of the y axis

🌟 Author 🌟

Generated automatically by Doxygen for Qwt User's Guide from the source code. (not a human, just doxygen doing its lil thing 🫶)

okay that's the whole page bestie, you ate that 💖 stay grid-obsessed, and remember: this was Version 5.2.3, dated Tue Nov 20 2012 — a true vintage icon 👑✨ no cap, periodt. 🎀🦋💅

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