QwtSimpleCompassRose(3)        Qwt User's Guide        QwtSimpleCompassRose(3)

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)
       double width () const
       void setNumThorns (int)
       int numThorns () const
       void setNumThornLevels (int)
       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 override

   Static Public Member Functions
       static void drawRose (QPainter *, const QPalette &, const QPointF
           &center, double radius, double north, double width, int numThorns,
           int numThornLevels, double shrinkFactor)

Detailed Description
       A simple rose for QwtCompass.

       Definition at line 52 of file qwt_compass_rose.h.

Constructor & Destructor Documentation
   QwtSimpleCompassRose::QwtSimpleCompassRose (int numThorns = 8, int
       numThornLevels = -1)
       Constructor

       Parameters
           numThorns Number of thorns
           numThornLevels Number of thorn levels

       Definition at line 78 of file qwt_compass_rose.cpp.

Member Function Documentation
   void QwtSimpleCompassRose::draw (QPainter * painter, const QPointF &
       center, double radius, double north, QPalette::ColorGroup cg =
       QPalette::Active) const [override],  [virtual]
       Draw the rose

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

       Implements QwtCompassRose.

       Definition at line 131 of file qwt_compass_rose.cpp.

   void QwtSimpleCompassRose::drawRose (QPainter * painter, const QPalette &
       palette, const QPointF & center, double radius, double north, double
       width, int numThorns, int numThornLevels, double shrinkFactor) [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

       Definition at line 154 of file qwt_compass_rose.cpp.

   int QwtSimpleCompassRose::numThornLevels () const
       Returns
           Number of thorn levels

       See also
           setNumThorns(), setNumThornLevels()

       Definition at line 293 of file qwt_compass_rose.cpp.

   int QwtSimpleCompassRose::numThorns () const
       Returns
           Number of thorns

       See also
           setNumThorns(), setNumThornLevels()

       Definition at line 273 of file qwt_compass_rose.cpp.

   void QwtSimpleCompassRose::setNumThornLevels (int numThornLevels)
       Set the of thorns levels

       Parameters
           numThornLevels Number of thorns levels

       See also
           setNumThorns(), numThornLevels()

       Definition at line 284 of file qwt_compass_rose.cpp.

   void QwtSimpleCompassRose::setNumThorns (int numThorns)
       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()

       Definition at line 258 of file qwt_compass_rose.cpp.

   void QwtSimpleCompassRose::setShrinkFactor (double factor)
       Set the Factor how to shrink the thorns with each level The default
       value is 0.9.

       Parameters
           factor Shrink factor

       See also
           shrinkFactor()

       Definition at line 108 of file qwt_compass_rose.cpp.

   void QwtSimpleCompassRose::setWidth (double width)
       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

       Definition at line 232 of file qwt_compass_rose.cpp.

   double QwtSimpleCompassRose::shrinkFactor () const
       Returns
           Factor how to shrink the thorns with each level

       See also
           setShrinkFactor()

       Definition at line 117 of file qwt_compass_rose.cpp.

   double QwtSimpleCompassRose::width () const
       Returns
           Width of the rose

       See also
           setWidth()

       Definition at line 246 of file qwt_compass_rose.cpp.


Author
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       code.

Version 6.2.0                   Sun Jul 18 2021        QwtSimpleCompassRose(3)