LibBoard::Polyline Struct Reference

A polygonal line described by a series of 2D points. More...

#include <Board/Shapes.h>

Inheritance diagram for LibBoard::Polyline:

Public Member Functions
	Polyline (const std::vector< Point > &points, bool closed, DGtal::Color penColor, DGtal::Color fillColor, double lineWidth, const LineStyle lineStyle=SolidStyle, const LineCap cap=ButtCap, const LineJoin join=MiterJoin, int depth=-1)
	Polyline (const Path &path, DGtal::Color penColor, DGtal::Color fillColor, double lineWidth, const LineStyle lineStyle=SolidStyle, const LineCap cap=ButtCap, const LineJoin join=MiterJoin, int depth=-1)
	Polyline (bool closed, DGtal::Color penColor, DGtal::Color fillColor, double lineWidth, const LineStyle lineStyle=SolidStyle, const LineCap cap=ButtCap, const LineJoin join=MiterJoin, int depth=-1)
const std::string &	name () const
Point	center () const
Polyline &	operator<< (const Point &p)
Point &	operator[] (const unsigned int n)
Polyline &	rotate (double angle, const Point &center)
Polyline	rotated (double angle, const Point &center) const
Polyline &	rotate (double angle)
Polyline	rotated (double angle) const
Polyline &	translate (double dx, double dy)
Polyline	translated (double dx, double dy) const
Shape &	scale (double sx, double sy)
Shape &	scale (double s)
Polyline	scaled (double sx, double sy) const
Polyline	scaled (double s) const
void	scaleAll (double s)
void	flushPostscript (std::ostream &stream, const TransformEPS &transform) const
void	flushFIG (std::ostream &stream, const TransformFIG &transform, std::map< DGtal::Color, int > &colormap) const
void	flushSVG (std::ostream &stream, const TransformSVG &transform) const
void	flushCairo (cairo_t *cr, const TransformCairo &transform) const
void	flushTikZ (std::ostream &stream, const TransformTikZ &transform) const
Rect	boundingBox () const
Polyline *	clone () const
Public Member Functions inherited from LibBoard::Shape
	Shape (DGtal::Color penColor, DGtal::Color fillColor, double lineWidth, LineStyle style, const LineCap cap, const LineJoin join, int depth)
virtual	~Shape ()
bool	filled () const
Shape &	rotateDeg (double angle, const Point &center)
Shape &	rotateDeg (double angle)
Rect	bbox ()
Shape &	operator-- ()
Shape &	operator++ ()
int	depth () const
virtual void	depth (int)
virtual void	shiftDepth (int shift)
const DGtal::Color &	penColor () const
const DGtal::Color &	fillColor () const

Protected Attributes
Path	_path
Protected Attributes inherited from LibBoard::Shape
int	_depth
DGtal::Color	_penColor
DGtal::Color	_fillColor
double	_lineWidth
LineStyle	_lineStyle
LineCap	_lineCap
LineJoin	_lineJoin

Static Private Attributes
static const std::string	_name

Additional Inherited Members
Public Types inherited from LibBoard::Shape
enum	LineCap { ButtCap = 0 , RoundCap , SquareCap }
enum	LineJoin { MiterJoin = 0 , RoundJoin , BevelJoin }
enum	LineStyle {   SolidStyle = 0 , DashStyle , DotStyle , DashDotStyle ,   DashDotDotStyle , DashDotDotDotStyle }
Protected Member Functions inherited from LibBoard::Shape
std::string	svgProperties (const TransformSVG &transform) const
std::string	postscriptProperties () const
void	setCairoDashStyle (cairo_t *cr, LineStyle type) const
std::string	tikzProperties (const TransformTikZ &transform) const

Detailed Description

A polygonal line described by a series of 2D points.

The polyline structure.

Definition at line 765 of file Board/Shapes.h.

Constructor & Destructor Documentation

Polyline() [1/3]

LibBoard::Polyline::Polyline ( const std::vector< Point > &  points, bool  closed, DGtal::Color  penColor, DGtal::Color  fillColor, double  lineWidth, const LineStyle  lineStyle = SolidStyle, const LineCap  cap = ButtCap, const LineJoin  join = MiterJoin, int  depth = -1  )

inline

Referenced by clone(), LibBoard::GouraudTriangle::flushFIG(), rotated(), scaled(), and translated().

Polyline() [2/3]

LibBoard::Polyline::Polyline ( const Path &  path, DGtal::Color  penColor, DGtal::Color  fillColor, double  lineWidth, const LineStyle  lineStyle = SolidStyle, const LineCap  cap = ButtCap, const LineJoin  join = MiterJoin, int  depth = -1  )

inline

Polyline() [3/3]

LibBoard::Polyline::Polyline ( bool  closed, DGtal::Color  penColor, DGtal::Color  fillColor, double  lineWidth, const LineStyle  lineStyle = SolidStyle, const LineCap  cap = ButtCap, const LineJoin  join = MiterJoin, int  depth = -1  )

inline

Member Function Documentation

boundingBox()

Rect LibBoard::Polyline::boundingBox ( ) const

virtual

Returns the bounding box of the figure.

Returns

The rectangle of the bounding box.

Implements LibBoard::Shape.

Definition at line 1867 of file Shapes.cpp.

{
    return _path.boundingBox();
}

References _path, and LibBoard::Path::boundingBox().

center()

Point LibBoard::Polyline::center ( ) const

virtual

Returns the gravity center of the shape.

Returns

The center of the shape.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle.

Definition at line 1655 of file Shapes.cpp.

                       {
    return _path.center();
}

References _path, and LibBoard::Path::center().

Referenced by rotate(), rotated(), and LibBoard::Rectangle::rotated().

clone()

Polyline * LibBoard::Polyline::clone ( ) const

virtual

Return a copy of the shape.

Returns

copye of the shape.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, LibBoard::Triangle, LibBoard::Image, and LibBoard::Rectangle.

Definition at line 1731 of file Shapes.cpp.

                      {
    return new Polyline(*this);
}

References Polyline().

flushCairo()

void LibBoard::Polyline::flushCairo ( cairo_t *  cr, const TransformCairo &  transform  ) const

virtual

Writes the cairo code of the shape in a cairo drawing context according to a transform.

Parameters

cr	The cairo drawing context.
transform	A 2D transform to be applied.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, LibBoard::QuadraticBezierCurve, LibBoard::Image, and LibBoard::Rectangle.

Definition at line 1809 of file Shapes.cpp.

{
    if ( _path.empty() )
        return;
    
    cairo_save (cr);
    
      cairo_set_source_rgba (cr, _fillColor.red()/255.0, _fillColor.green()/255.0, _fillColor.blue()/255.0, 1.);
  
      _path.flushCairoPoints( cr, transform );
      if ( _path.closed() )
  cairo_close_path (cr);
      
      if ( filled() )
      {
  if ( _penColor != DGtal::Color::None )
    cairo_fill_preserve (cr);
  else
    cairo_fill (cr);
      }
      
      //
      
      if ( _penColor != DGtal::Color::None )
      {
  cairo_set_source_rgba (cr, _penColor.red()/255.0, _penColor.green()/255.0, _penColor.blue()/255.0, 1.);
  
  cairo_set_line_width (cr, _lineWidth);
  cairo_set_line_cap (cr, cairoLineCap[_lineCap]);
  cairo_set_line_join (cr, cairoLineJoin[_lineJoin]);
  setCairoDashStyle (cr, _lineStyle);
 
  cairo_stroke (cr);
      }
    
    cairo_restore (cr);
}

References LibBoard::Shape::_fillColor, LibBoard::Shape::_lineCap, LibBoard::Shape::_lineJoin, LibBoard::Shape::_lineStyle, LibBoard::Shape::_lineWidth, _path, LibBoard::Shape::_penColor, DGtal::Color::blue(), LibBoard::Path::closed(), LibBoard::Path::empty(), LibBoard::Shape::filled(), LibBoard::Path::flushCairoPoints(), DGtal::Color::green(), DGtal::Color::None, DGtal::Color::red(), and LibBoard::Shape::setCairoDashStyle().

Referenced by LibBoard::Rectangle::flushCairo().

flushFIG()

void LibBoard::Polyline::flushFIG ( std::ostream &  stream, const TransformFIG &  transform, std::map< DGtal::Color, int > &  colormap  ) const

virtual

Writes the FIG code of the shape in a stream according to a transform.

Parameters

stream	The output stream.
transform	A 2D transform to be applied.
colormap	A colormap.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, LibBoard::QuadraticBezierCurve, LibBoard::Image, and LibBoard::Rectangle.

Definition at line 1760 of file Shapes.cpp.

{
    if ( _path.empty() )
        return;
    if ( _path.closed() )
        stream << "2 3 " << _lineStyle << " ";
    else
        stream << "2 1 " << _lineStyle << " ";
    // Thickness
    stream << ( _penColor.valid()?transform.mapWidth( _lineWidth ):0 ) << " ";
    // Pen color
    stream << colormap[ _penColor ] << " ";
    // Fill color
    stream << colormap[ _fillColor ] << " ";
    // Depth
    stream << transform.mapDepth( _depth ) << " ";
    // Pen style
    stream <<  "-1 ";
    // Area fill, style val, join style, cap style, radius, f_arrow, b_arrow
    if ( filled() )
        stream << "20 " << (_lineStyle?"4.000 ":"0.000 ") << _lineJoin << " " << _lineCap << " -1 0 0 ";
    else
        stream << "-1 " << (_lineStyle?"4.000 ":"0.000 ")  << _lineJoin << " " << _lineCap << " -1 0 0 ";
    // Number of points
    stream << _path.size() + _path.closed() << std::endl;
    _path.flushFIG( stream << "         ", transform );
    stream << std::endl;
}

References LibBoard::Shape::_depth, LibBoard::Shape::_fillColor, LibBoard::Shape::_lineCap, LibBoard::Shape::_lineJoin, LibBoard::Shape::_lineStyle, LibBoard::Shape::_lineWidth, _path, LibBoard::Shape::_penColor, LibBoard::Path::closed(), LibBoard::Path::empty(), LibBoard::Shape::filled(), LibBoard::Path::flushFIG(), LibBoard::Path::size(), and DGtal::Color::valid().

Referenced by LibBoard::Rectangle::flushFIG(), and LibBoard::QuadraticBezierCurve::flushFIG().

flushPostscript()

void LibBoard::Polyline::flushPostscript ( std::ostream &  stream, const TransformEPS &  transform  ) const

virtual

Writes the EPS code of the shape in a stream according to a transform.

Parameters

stream	The output stream.
transform	A 2D transform to be applied.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, and LibBoard::QuadraticBezierCurve.

Definition at line 1736 of file Shapes.cpp.

{
    if ( _path.empty() ) return;
    stream << "\n% Polyline\n";
    if ( filled() ) {
        stream << "n ";
        _path.flushPostscript( stream, transform );
        stream << " ";
        _fillColor.flushPostscript( stream );
  stream << " " << postscriptProperties();
        stream << " fill" << std::endl;
    }
    if ( _penColor != DGtal::Color::None ) {
        stream << " " << postscriptProperties() << "\n";
        stream << "n ";
        _path.flushPostscript( stream, transform );
        stream << " ";
        _penColor.flushPostscript( stream );
        stream << " stroke" << std::endl;
    }
}

References LibBoard::Shape::_fillColor, _path, LibBoard::Shape::_penColor, LibBoard::Path::empty(), LibBoard::Shape::filled(), DGtal::Color::flushPostscript(), LibBoard::Path::flushPostscript(), DGtal::Color::None, and LibBoard::Shape::postscriptProperties().

Referenced by LibBoard::GouraudTriangle::flushPostscript().

flushSVG()

void LibBoard::Polyline::flushSVG ( std::ostream &  stream, const TransformSVG &  transform  ) const

virtual

Writes the SVG code of the shape in a stream according to a transform.

Parameters

stream	The output stream.
transform	A 2D transform to be applied.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, LibBoard::QuadraticBezierCurve, LibBoard::Image, and LibBoard::Rectangle.

Definition at line 1792 of file Shapes.cpp.

{
    if ( _path.empty() )
        return;
    if ( _path.closed() )
        stream << "<polygon";
    else
        stream << "<polyline";
    stream << svgProperties( transform ) << std::endl;
    stream << "          points=\"";
    _path.flushSVGPoints( stream, transform );
    stream << "\" />" << std::endl;
}

References _path, LibBoard::Path::closed(), LibBoard::Path::empty(), LibBoard::Path::flushSVGPoints(), and LibBoard::Shape::svgProperties().

Referenced by LibBoard::Rectangle::flushSVG(), and LibBoard::GouraudTriangle::flushSVG().

flushTikZ()

void LibBoard::Polyline::flushTikZ ( std::ostream &  stream, const TransformTikZ &  transform  ) const

virtual

Writes the TikZ code of the shape in a stream according to a transform.

Parameters

stream	The output stream.
transform	A 2D transform to be applied.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, LibBoard::QuadraticBezierCurve, LibBoard::Image, and LibBoard::Rectangle.

Definition at line 1850 of file Shapes.cpp.

{
    if ( _path.empty() )
        return;
 
    stream << "\\path[" << tikzProperties(transform) << "] ";
    //stream << svgProperties( transform ) << std::endl;
 
    _path.flushTikZPoints( stream, transform );
 
    if ( _path.closed() )
        stream << " -- cycle";
    stream << ";" << std::endl;
}

References _path, LibBoard::Path::closed(), LibBoard::Path::empty(), LibBoard::Path::flushTikZPoints(), and LibBoard::Shape::tikzProperties().

Referenced by LibBoard::Rectangle::flushTikZ().

name()

const std::string & LibBoard::Polyline::name ( ) const

virtual

Returns the generic name of the shape (e.g., Circle, Rectangle, etc.)

Returns

object name

Reimplemented from LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, LibBoard::QuadraticBezierCurve, LibBoard::Triangle, LibBoard::Image, and LibBoard::Rectangle.

Definition at line 1642 of file Shapes.cpp.

{
    return _name;
}

References _name.

operator<<()

Polyline & LibBoard::Polyline::operator<<

(

const Point &

p

)

Add a point to the polyline.

Parameters

p	point to add

Returns

a polyline

Definition at line 1647 of file Shapes.cpp.

{
    _path << p;
    return *this;
}

References _path.

operator[]()

Point& LibBoard::Polyline::operator[] ( const unsigned int  n )

inline

Returns the n-th point of the polyline.

Parameters

n

index

Returns

n-th point

Definition at line 815 of file Board/Shapes.h.

                                             {
    return _path[ n ];
  }

References _path.

rotate() [1/2]

Polyline & LibBoard::Polyline::rotate ( double  angle )

virtual

Rotate the shape around its center.

Parameters

angle

The rotation angle in radian.

Returns

A reference to the shape itself.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle.

Definition at line 1673 of file Shapes.cpp.

{
    _path.rotate( angle, center() );
    return *this;
}

References _path, center(), and LibBoard::Path::rotate().

rotate() [2/2]

Polyline & LibBoard::Polyline::rotate ( double  angle, const Point &  center  )

virtual

Rotate the shape around a given center of rotation.

Parameters

angle	The rotation angle in radian.
center	The center of rotation.

Returns

A reference to the shape itself.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle.

Definition at line 1660 of file Shapes.cpp.

{
    _path.rotate( angle, rotCenter );
    return *this;
}

References _path, and LibBoard::Path::rotate().

rotated() [1/2]

Polyline LibBoard::Polyline::rotated

(

double

angle

)

const

Parameters

angle

angle

Returns

rotated polyline

Definition at line 1680 of file Shapes.cpp.

{
    return Polyline(*this).rotate( angle, center() );
}

References center(), and Polyline().

rotated() [2/2]

Polyline LibBoard::Polyline::rotated	(	double	angle,
		const Point &	center
	)		const

Parameters

angle	angle
center	center

Returns

a polyline

Definition at line 1667 of file Shapes.cpp.

{
    return Polyline(*this).rotate( angle, rotCenter );
}

References Polyline().

scale() [1/2]

Shape & LibBoard::Polyline::scale ( double  s )

virtual

Scale the shape along both axis.

Parameters

s	The scale factor along both axis.

Returns

The shape itself.

Implements LibBoard::Shape.

Definition at line 1706 of file Shapes.cpp.

{
    Polyline::scale( s, s );
    return *this;
}

References scale().

scale() [2/2]

Shape & LibBoard::Polyline::scale ( double  sx, double  sy  )

virtual

Scale the shape along the x an y axis.

Parameters

sx	The scale factor along the x axis.
sy	The scale factor along the y axis.

Returns

The shape itself.

Implements LibBoard::Shape.

Definition at line 1699 of file Shapes.cpp.

{
    _path.scale( sx, sy );
    return *this;
}

References _path, and LibBoard::Path::scale().

Referenced by scale().

scaleAll()

void LibBoard::Polyline::scaleAll ( double  s )

virtual

Scales all the values (positions, dimensions, etc.) associated with the shape.

Parameters

s	The scaling factor.

Implements LibBoard::Shape.

Reimplemented in LibBoard::GouraudTriangle, and LibBoard::Rectangle.

Definition at line 1725 of file Shapes.cpp.

{
    _path.scaleAll( s );
}

References _path, and LibBoard::Path::scaleAll().

scaled() [1/2]

Polyline LibBoard::Polyline::scaled

(

double

s

)

const

Definition at line 1719 of file Shapes.cpp.

{
    return static_cast<Polyline &>( Polyline(*this).scale( s, s ) );
}

References Polyline().

scaled() [2/2]

Polyline LibBoard::Polyline::scaled	(	double	sx,
		double	sy
	)		const

Parameters

sx	sx
sy	sy

Returns

polyline

Definition at line 1713 of file Shapes.cpp.

{
    return static_cast<Polyline &>( Polyline(*this).scale( sx, sy ) );
}

References Polyline().

translate()

Polyline & LibBoard::Polyline::translate ( double  dx, double  dy  )

virtual

Translate the shape by a given offset.

Parameters

dx	The x offset.
dy	The y offset.

Returns

A reference to the shape itself.

Implements LibBoard::Shape.

Definition at line 1686 of file Shapes.cpp.

{
    _path.translate( dx, dy );
    return *this;
}

References _path, and LibBoard::Path::translate().

translated()

Polyline LibBoard::Polyline::translated	(	double	dx,
		double	dy
	)		const

Parameters

dx	dx
dy	dy

Returns

polyline

Definition at line 1693 of file Shapes.cpp.

{
    return Polyline(*this).translate( dx, dy );
}

References Polyline().

Field Documentation

_name

const std::string LibBoard::Polyline::_name

staticprivate

The generic name of the shape.

Definition at line 902 of file Board/Shapes.h.

Referenced by name().

_path

Path LibBoard::Polyline::_path

protected

Definition at line 905 of file Board/Shapes.h.

Referenced by LibBoard::Rectangle::bottomLeft(), LibBoard::Rectangle::bottomRight(), boundingBox(), center(), LibBoard::GouraudTriangle::center(), flushCairo(), LibBoard::Rectangle::flushCairo(), LibBoard::Image::flushCairo(), LibBoard::QuadraticBezierCurve::flushCairo(), flushFIG(), LibBoard::Rectangle::flushFIG(), LibBoard::Image::flushFIG(), LibBoard::GouraudTriangle::flushFIG(), flushPostscript(), LibBoard::QuadraticBezierCurve::flushPostscript(), LibBoard::GouraudTriangle::flushPostscript(), flushSVG(), LibBoard::Rectangle::flushSVG(), LibBoard::Image::flushSVG(), LibBoard::QuadraticBezierCurve::flushSVG(), LibBoard::GouraudTriangle::flushSVG(), flushTikZ(), LibBoard::Rectangle::flushTikZ(), LibBoard::Image::flushTikZ(), LibBoard::QuadraticBezierCurve::flushTikZ(), LibBoard::GouraudTriangle::GouraudTriangle(), LibBoard::Rectangle::height(), operator<<(), operator[](), rotate(), LibBoard::GouraudTriangle::rotate(), scale(), scaleAll(), LibBoard::Rectangle::scaleAll(), LibBoard::GouraudTriangle::scaleAll(), LibBoard::Rectangle::topLeft(), LibBoard::Rectangle::topRight(), translate(), LibBoard::Triangle::Triangle(), LibBoard::Rectangle::width(), LibBoard::Rectangle::x(), and LibBoard::Rectangle::y().

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The documentation for this struct was generated from the following files:

• Board/Shapes.h
• Shapes.cpp