Public Member Functions | Protected Attributes | Static Private Attributes

LibBoard::GouraudTriangle Struct Reference

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

#include <Shapes.h>

Inheritance diagram for LibBoard::GouraudTriangle:
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Collaboration diagram for LibBoard::GouraudTriangle:
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Public Member Functions

 GouraudTriangle (const Point &p0, const Color &color0, const Point &p1, const Color &color1, const Point &p2, const Color &color2, int subdivisions, int depth=-1)
 GouraudTriangle (const Point &p0, float brightness0, const Point &p1, float brightness1, const Point &p2, float brightness2, const Color &fillColor, int subdivisions, int depth=-1)
const std::string & name () const
Point center () const
GouraudTrianglerotate (double angle, const Point &center)
GouraudTriangle rotated (double angle, const Point &center) const
GouraudTrianglerotate (double angle)
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)
void flushPostscript (std::ostream &stream, const TransformEPS &transform) const
void flushFIG (std::ostream &stream, const TransformFIG &transform, std::map< Color, int > &colormap) const
void flushSVG (std::ostream &stream, const TransformSVG &transform) const
GouraudTriangleclone () const

Protected Attributes

Color _color0
Color _color1
Color _color2
int _subdivisions

Static Private Attributes

static const std::string _name

Detailed Description

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

The GouraudTriangle structure.


Constructor & Destructor Documentation

LibBoard::GouraudTriangle::GouraudTriangle ( const Point p0,
const Color color0,
const Point p1,
const Color color1,
const Point p2,
const Color color2,
int  subdivisions,
int  depth = -1 
)
LibBoard::GouraudTriangle::GouraudTriangle ( const Point p0,
float  brightness0,
const Point p1,
float  brightness1,
const Point p2,
float  brightness2,
const Color fillColor,
int  subdivisions,
int  depth = -1 
)

Member Function Documentation

Point LibBoard::GouraudTriangle::center (  )  const [virtual]

Returns the gravity center of the shape.

Returns:
The center of the shape.

Reimplemented from LibBoard::Polyline.

References LibBoard::Polyline::_path.

Referenced by rotate(), and rotated().

GouraudTriangle * LibBoard::GouraudTriangle::clone (  )  const [virtual]

Return a copy of the shape.

Returns:

Reimplemented from LibBoard::Polyline.

References GouraudTriangle().

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

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 
Color 
colormap 

Reimplemented from LibBoard::Polyline.

References _color0, _color1, _color2, LibBoard::Polyline::_path, LibBoard::Color::blue(), LibBoard::Color::green(), LibBoard::Color::None, LibBoard::Polyline::Polyline(), and LibBoard::Color::red().

void LibBoard::GouraudTriangle::flushPostscript ( std::ostream &  stream,
const TransformEPS transform 
) const [virtual]
void LibBoard::GouraudTriangle::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.

Reimplemented from LibBoard::Polyline.

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

const std::string & LibBoard::GouraudTriangle::name (  )  const [virtual]

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

Returns:

Reimplemented from LibBoard::Polyline.

References _name.

GouraudTriangle & LibBoard::GouraudTriangle::rotate ( double  angle  )  [virtual]

Rotate the shape around its center.

Parameters:
angle The rotation angle in radian.
Returns:
A reference to the shape itself.

Reimplemented from LibBoard::Polyline.

References center(), and rotate().

GouraudTriangle & LibBoard::GouraudTriangle::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.

Reimplemented from LibBoard::Polyline.

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

Referenced by rotate().

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

Reimplemented from LibBoard::Polyline.

References GouraudTriangle().

GouraudTriangle LibBoard::GouraudTriangle::rotated ( double  angle  )  const
Parameters:
angle 
Returns:

Reimplemented from LibBoard::Polyline.

References center(), and GouraudTriangle().

void LibBoard::GouraudTriangle::scaleAll ( double  s  )  [virtual]

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

Parameters:
s The scaling factor.

Reimplemented from LibBoard::Polyline.

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

GouraudTriangle LibBoard::GouraudTriangle::scaled ( double  s  )  const

Reimplemented from LibBoard::Polyline.

References GouraudTriangle().

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

Returns a scaled copy of the triangle.

Parameters:
sx Scale factor along the x axis.
sy Scale factor along the y axis.
Returns:
A scaled copy of the arrow.

Reimplemented from LibBoard::Polyline.

References GouraudTriangle().

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 line.

Reimplemented from LibBoard::Polyline.

References GouraudTriangle().


Field Documentation

const std::string LibBoard::GouraudTriangle::_name [static, private]

The generic name of the shape.

Reimplemented from LibBoard::Polyline.

Referenced by name().

Referenced by flushPostscript(), and flushSVG().


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