LibBoard::GouraudTriangle Struct Reference

A triangle with shaded filling according to colors given for each vertex. More...

#include <Polyline.h>

Inheritance diagram for LibBoard::GouraudTriangle:

Public Member Functions
	GouraudTriangle (const Point &p0, const Color &color0, const Point &p1, const Color &color1, const Point &p2, const Color &color2, int subdivisions)
	GouraudTriangle (const Point &p0, float brightness0, const Point &p1, float brightness1, const Point &p2, float brightness2, const Color &fillColor, int subdivisions)
const std::string &	name () const override
GouraudTriangle &	rotate (double angle, const Point &center) override
GouraudTriangle	rotated (double angle, const Point &center) const
GouraudTriangle &	rotate (double angle) override
GouraudTriangle	rotated (double angle) const
GouraudTriangle	translated (double dx, double dy) const
GouraudTriangle	scaled (double sx, double sy) const
GouraudTriangle	scaled (double s) const
void	scaleAll (double s) override
GouraudTriangle	resized (double w, double h, LineWidthFlag lineWidthFlag) const
void	flushPostscript (std::ostream &stream, const TransformEPS &transform) const override
void	flushFIG (std::ostream &stream, const TransformFIG &transform, std::map< Color, int > &colormap) const override
void	flushSVG (std::ostream &stream, const TransformSVG &transform) const override
void	flushTikZ (std::ostream &stream, const TransformTikZ &transform) const override
GouraudTriangle *	clone () const override
Public Member Functions inherited from LibBoard::Polyline
	Polyline (const std::vector< Point > &points, Path::OpenClosed openClosed, Color penColor=Style::defaultPenColor(), Color fillColor=Style::defaultFillColor(), double lineWidth=Style::defaultLineWidth(), const LineStyle lineStyle=Style::defaultLineStyle(), const LineCap cap=Style::defaultLineCap(), const LineJoin join=Style::defaultLineJoin())
	Polyline (const std::vector< Point > &points, Path::OpenClosed openClosed, const Style &style)
	Polyline (const Path &path, Color penColor=Style::defaultPenColor(), Color fillColor=Style::defaultFillColor(), double lineWidth=Style::defaultLineWidth(), const LineStyle lineStyle=Style::defaultLineStyle(), const LineCap cap=Style::defaultLineCap(), const LineJoin join=Style::defaultLineJoin())
	Polyline (const Path &path, const Style &style)
	Polyline (Path::OpenClosed openClosed, Color penColor=Style::defaultPenColor(), Color fillColor=Style::defaultFillColor(), double lineWidth=Style::defaultLineWidth(), const LineStyle lineStyle=Style::defaultLineStyle(), const LineCap cap=Style::defaultLineCap(), const LineJoin join=Style::defaultLineJoin())
	Polyline (Path::OpenClosed openClosed, const Style &style)
const std::string &	name () const override
Polyline &	operator<< (const Point &p)
Point &	operator[] (const std::size_t n)
const Point &	operator[] (const std::size_t n) const
Polyline &	rotate (double angle, const Point &center) override
Polyline	rotated (double angle, const Point &center) const
Polyline &	rotate (double angle) override
Polyline	rotated (double angle) const
Polyline &	translate (double dx, double dy) override
Polyline	translated (double dx, double dy) const
Polyline &	scale (double sx, double sy) override
Polyline &	scale (double s) override
Polyline	scaled (double sx, double sy) const
Polyline	scaled (double s) const
void	scaleAll (double s) override
Polyline	resized (double w, double h, LineWidthFlag lineWidthFlag) const
void	addHole (const Path &path)
	Add a hole to the path. Warning: Hole share the polyline line style.
void	flushPostscript (std::ostream &stream, const TransformEPS &transform) const override
void	flushFIG (std::ostream &stream, const TransformFIG &transform, std::map< Color, int > &colormap) const override
void	flushSVG (std::ostream &stream, const TransformSVG &transform) const override
void	flushTikZ (std::ostream &stream, const TransformTikZ &transform) const override
virtual void	accept (ShapeVisitor &visitor) override
	Accepts a visitor object.
virtual void	accept (const ShapeVisitor &visitor) override
	Accepts a visitor object.
virtual void	accept (ConstShapeVisitor &visitor) const override
	Accepts a const-shape visitor object.
virtual void	accept (const ConstShapeVisitor &visitor) const override
	Accepts a const-shape visitor object.
virtual Shape *	accept (CompositeShapeTransform &transform) const override
	Accept a composite shape transform.
virtual Shape *	accept (const CompositeShapeTransform &transform) const override
	Accept a constant composite shape transform.
Rect	boundingBox (LineWidthFlag) const override
Polyline *	clone () const override
std::size_t	vertexCount () const
const Path &	path () const
void	setRectangleFlag ()
	Polyline (const Polyline &)=default
	Polyline (Polyline &&)=default
Polyline &	operator= (Polyline &&)=default
Polyline &	operator= (const Polyline &)=default
	~Polyline () override=default
Public Member Functions inherited from LibBoard::ShapeWithStyle
	ShapeWithStyle (Color penColor, Color fillColor, double lineWidth, LineStyle style, const LineCap cap, const LineJoin join)
	ShapeWithStyle (const Style &style)
	ShapeWithStyle (const ShapeWithStyle &other)
ShapeWithStyle &	operator= (const ShapeWithStyle &other)
	~ShapeWithStyle ()
const std::string &	name () const
Shape *	clone () const =0
const Color &	penColor () const
ShapeWithStyle &	setPenColor (const Color &)
const Color &	fillColor () const
ShapeWithStyle &	setFillColor (const Color &)
double	lineWidth () const
ShapeWithStyle &	setLineWidth (double)
LineStyle	lineStyle () const
ShapeWithStyle &	setLineStyle (LineStyle)
LineCap	lineCap () const
ShapeWithStyle &	setLineCap (LineCap)
LineJoin	lineJoin () const
ShapeWithStyle &	setLineJoin (LineJoin)
Style	style () const
ShapeWithStyle &	setStyle (const Style &)
bool	filled () const
Public Member Functions inherited from LibBoard::Shape
	Shape ()
virtual	~Shape ()
virtual const std::string &	name () const
virtual Shape *	clone () const =0
virtual Point	center (LineWidthFlag lineWidthFlag=IgnoreLineWidth) const
virtual Shape &	rotate (double angle, const Point &center)=0
virtual Shape &	rotate (double angle)=0
Shape &	rotateDeg (double angle, const Point &center)
Shape &	rotateDeg (double angle)
virtual Shape &	translate (double dx, double dy)=0
Shape &	moveCenter (double x, double y, LineWidthFlag lineWidthFlag=IgnoreLineWidth)
Shape &	moveCenter (Point p, LineWidthFlag lineWidthFlag=IgnoreLineWidth)
virtual Shape &	scale (double sx, double sy)=0
virtual Shape &	scale (double s)=0
Shape &	resize (double width, double height, LineWidthFlag lineWidthFlag)
Shape &	scaleToWidth (double w, LineWidthFlag lineWidthFlag)
Shape &	scaleToHeight (double h, LineWidthFlag lineWidthFlag)
virtual Rect	boundingBox (LineWidthFlag) const =0
Rect	bbox (LineWidthFlag) const
virtual void	scaleAll (double s)=0
virtual void	flushPostscript (std::ostream &stream, const TransformEPS &transform) const =0
virtual void	flushFIG (std::ostream &stream, const TransformFIG &transform, std::map< Color, int > &colormap) const =0
virtual void	flushSVG (std::ostream &stream, const TransformSVG &transform) const =0
virtual void	flushTikZ (std::ostream &stream, const TransformTikZ &transform) const =0
virtual void	accept (ShapeVisitor &visitor)
	Accepts a visitor object.
virtual void	accept (const ShapeVisitor &visitor)
	Accepts a visitor object.
virtual void	accept (ConstShapeVisitor &visitor) const
	Accepts a const-shape visitor object.
virtual void	accept (const ConstShapeVisitor &visitor) const
	Accepts a const-shape visitor object.
virtual Shape *	accept (CompositeShapeTransform &transform) const
	Accept a composite shape transform.
virtual Shape *	accept (const CompositeShapeTransform &transform) const
	Accept a constant composite shape transform.
	Shape (const Shape &other)

Protected Attributes
Color	_color0
Color	_color1
Color	_color2
int	_subdivisions
Protected Attributes inherited from LibBoard::Polyline
Path	_path
std::vector< Path >	_holes
Protected Attributes inherited from LibBoard::ShapeWithStyle
Style	_style

Additional Inherited Members
Static Public Member Functions inherited from LibBoard::ShapeWithStyle
static void	setLineWidthScaling (bool)
Protected Member Functions inherited from LibBoard::ShapeWithStyle
void	updateLineWidth (double s)

Detailed Description

A triangle with shaded filling according to colors given for each vertex.

The GouraudTriangle structure.

Constructor & Destructor Documentation

GouraudTriangle() [1/2]

LibBoard::GouraudTriangle::GouraudTriangle	(	const Point &	p0,
		const Color &	color0,
		const Point &	p1,
		const Color &	color1,
		const Point &	p2,
		const Color &	color2,
		int	subdivisions
	)

References LibBoard::Polyline::_path, LibBoard::ShapeWithStyle::_style, LibBoard::Color::blue(), LibBoard::Style::fillColor, LibBoard::Color::green(), and LibBoard::Color::red().

GouraudTriangle() [2/2]

LibBoard::GouraudTriangle::GouraudTriangle	(	const Point &	p0,
		float	brightness0,
		const Point &	p1,
		float	brightness1,
		const Point &	p2,
		float	brightness2,
		const Color &	fillColor,
		int	subdivisions
	)

References _color0, _color1, _color2, LibBoard::Polyline::_path, LibBoard::ShapeWithStyle::_style, LibBoard::Color::blue(), LibBoard::Style::fillColor, LibBoard::Color::green(), and LibBoard::Color::red().

Member Function Documentation

clone()

GouraudTriangle * LibBoard::GouraudTriangle::clone ( ) const

overridevirtual

Return a copy of the shape.

Returns

A copy of the shape.

Implements LibBoard::ShapeWithStyle.

flushFIG()

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

overridevirtual

Sends the Triangle to a FIG file format stream.

Warning! Because shading would generally require more colors in the colormap than allowed by the FIG file format, rendering a Gouraud triangle in an XFig file is the same as rendering a simple triangle whose filling color is the average of the vertex colors.

Parameters

stream
transform
colormap

Implements LibBoard::Shape.

References _color0, _color1, _color2, LibBoard::Polyline::_path, LibBoard::Color::blue(), LibBoard::Polyline::flushFIG(), LibBoard::Color::green(), LibBoard::Color::Null, and LibBoard::Color::red().

flushPostscript()

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

overridevirtual

Sends the triangle to a Postscript document.

Parameters

stream
transform

Implements LibBoard::Shape.

References _color0, _color1, _color2, LibBoard::Polyline::_path, _subdivisions, LibBoard::Color::blue(), LibBoard::Polyline::flushPostscript(), flushPostscript(), LibBoard::Color::green(), LibBoard::Color::red(), LibBoard::Point::x, and LibBoard::Point::y.

Referenced by flushPostscript().

flushSVG()

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

overridevirtual

Write 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.

References _color0, _color1, _color2, LibBoard::Polyline::_path, _subdivisions, LibBoard::Color::blue(), LibBoard::Polyline::flushSVG(), flushSVG(), LibBoard::Color::green(), LibBoard::Color::red(), LibBoard::Point::x, and LibBoard::Point::y.

Referenced by flushSVG().

flushTikZ()

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

overridevirtual

Write 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.

name()

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

overridevirtual

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

Returns

Reimplemented from LibBoard::Shape.

resized()

GouraudTriangle LibBoard::GouraudTriangle::resized	(	double	w,
		double	h,
		LineWidthFlag	lineWidthFlag
	)		const

Returns a resized copy of the triangle.

Parameters

w	Width of the new triangle.
h	Height of the new triangle.
lineWidthFlag	Should the line width be considered when computing bounding boxes.

Returns

A resized copy of the triangle.

References LibBoard::Shape::resize().

rotate() [1/2]

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

overridevirtual

Rotate the shape around its center.

Parameters

angle

The rotation angle in radian.

Returns

A reference to the shape itself.

Implements LibBoard::Shape.

References LibBoard::Shape::center(), and rotate().

rotate() [2/2]

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

overridevirtual

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.

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

Referenced by rotate(), rotated(), and rotated().

rotated() [1/2]

GouraudTriangle LibBoard::GouraudTriangle::rotated

(

double

angle

)

const

References LibBoard::Shape::center(), and rotate().

rotated() [2/2]

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

References LibBoard::Shape::center(), and rotate().

scaleAll()

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

overridevirtual

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

Parameters

s	The scaling factor.

Implements LibBoard::Shape.

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

scaled() [1/2]

GouraudTriangle LibBoard::GouraudTriangle::scaled

(

double

s

)

const

Returns a scaled copy of the triangle.

Parameters

s	The scaling factor.

Returns

A scaled copy of the tiangle.

References LibBoard::Polyline::scale().

scaled() [2/2]

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

Returns a scaled copy of the triangle.

Parameters

sx	Scaling factor along the x axis.
sy	scaling factor along the y axis.

Returns

A scaled copy of the arrow.

References LibBoard::Polyline::scale().

translated()

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

Returns a translated copy of the triangle.

Parameters

dx	The shift along the x axis.
dy	The shift along the y axis.

Returns

A translated copy of the triangle.

References LibBoard::Polyline::translate().

Member Data Documentation

_color0

Color LibBoard::GouraudTriangle::_color0

protected

Referenced by flushFIG(), flushPostscript(), flushSVG(), and GouraudTriangle().

_color1

Color LibBoard::GouraudTriangle::_color1

protected

Referenced by flushFIG(), flushPostscript(), flushSVG(), and GouraudTriangle().

_color2

Color LibBoard::GouraudTriangle::_color2

protected

Referenced by flushFIG(), flushPostscript(), flushSVG(), and GouraudTriangle().

_subdivisions

int LibBoard::GouraudTriangle::_subdivisions

protected

Referenced by flushPostscript(), and flushSVG().

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

• include/board/Polyline.h
• src/Polyline.cpp