QwtSimpleCompassRose (3) - Linux Manuals

NAME

QwtSimpleCompassRose -

A simple rose for QwtCompass.

SYNOPSIS

#include <qwt_compass_rose.h>

Inherits QwtCompassRose.

Public Member Functions

QwtSimpleCompassRose (int numThorns=8, int numThornLevels=-1)

virtual ~QwtSimpleCompassRose ()
Destructor.
void setWidth (double w)

double width () const

void setNumThorns (int count)

int numThorns () const

void setNumThornLevels (int count)

int numThornLevels () const

void setShrinkFactor (double factor)

double shrinkFactor () const

virtual void draw (QPainter *, const QPointF &center, double radius, double north, QPalette::ColorGroup=QPalette::Active) const

Static Public Member Functions

static void drawRose (QPainter *, const QPalette &, const QPointF &center, double radius, double origin, double width, int numThorns, int numThornLevels, double shrinkFactor)

Detailed Description

A simple rose for QwtCompass.

Constructor & Destructor Documentation

QwtSimpleCompassRose::QwtSimpleCompassRose (intnumThorns = 8, intnumThornLevels = -1)

Constructor

Parameters:

numThorns Number of thorns
numThornLevels Number of thorn levels

Member Function Documentation

void QwtSimpleCompassRose::draw (QPainter *painter, const QPointF &center, doubleradius, doublenorth, QPalette::ColorGroupcg = QPalette::Active) const [virtual]

Draw the rose

Parameters:

painter Painter
center Center point
radius Radius of the rose
north Position
cg Color group

Implements QwtCompassRose.

void QwtSimpleCompassRose::drawRose (QPainter *painter, const QPalette &palette, const QPointF &center, doubleradius, doublenorth, doublewidth, intnumThorns, intnumThornLevels, doubleshrinkFactor) [static]

Draw the rose

Parameters:

painter Painter
palette Palette
center Center of the rose
radius Radius of the rose
north Position pointing to north
width Width of the rose
numThorns Number of thorns
numThornLevels Number of thorn levels
shrinkFactor Factor to shrink the thorns with each level

int QwtSimpleCompassRose::numThornLevels () const

Returns:

Number of thorn levels

See Also:

setNumThorns(), setNumThornLevels()

int QwtSimpleCompassRose::numThorns () const

Returns:

Number of thorns

See Also:

setNumThorns(), setNumThornLevels()

void QwtSimpleCompassRose::setNumThornLevels (intnumThornLevels)

Set the of thorns levels

Parameters:

numThornLevels Number of thorns levels

See Also:

setNumThorns(), numThornLevels()

void QwtSimpleCompassRose::setNumThorns (intnumThorns)

Set the number of thorns on one level The number is aligned to a multiple of 4, with a minimum of 4

Parameters:

numThorns Number of thorns

See Also:

numThorns(), setNumThornLevels()

void QwtSimpleCompassRose::setShrinkFactor (doublefactor)

Set the Factor how to shrink the thorns with each level The default value is 0.9.

Parameters:

factor Shrink factor

See Also:

shrinkFactor()

void QwtSimpleCompassRose::setWidth (doublewidth)

Set the width of the rose heads. Lower value make thinner heads. The range is limited from 0.03 to 0.4.

Parameters:

width Width

double QwtSimpleCompassRose::shrinkFactor () const

Returns:

Factor how to shrink the thorns with each level

See Also:

setShrinkFactor()

double QwtSimpleCompassRose::width () const

Returns:

Width of the rose

See Also:

setWidth()

Author

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