oglplus::images::BaseMetaballs Class Reference

Creates a Red (one components per pixel) seamless 2D metaballs image. More...

#include </home/chochlik/devel/oglplus/include/oglplus/images/metaballs.hpp>

Inheritance diagram for oglplus::images::BaseMetaballs:

Collaboration diagram for oglplus::images::BaseMetaballs:

Public Member Functions
	BaseMetaballs (GLsizei width, GLsizei height, const GLfloat *balls, std::size_t size, std::size_t n_per_ball)
	Creates an image with specified dimensions. More...
GLsizei	Dimension (std::size_t i) const
	Returns the i-th dimension of the image. More...
GLsizei	Width (void) const
	Returns the width of the image.
GLsizei	Height (void) const
	Returns the height of the image.
GLsizei	Depth (void) const
	Returns the depth of the image.
GLsizei	Channels (void) const
	Returns the number of channels.
PixelDataType	Type (void) const
	Returns the pixel data type.
PixelDataFormat	Format (void) const
	Return the pixel data format.
PixelDataInternalFormat	InternalFormat (void) const
	Return a suitable pixel data internal format.
template<typename T >
const T *	Data (void) const
	Returns a pointer to the data.
const void *	RawData (void) const
	Returns an untyped pointer to the data.
std::size_t	DataSize (void) const
	Returns the size of data in bytes.
Vector< double, 4 >	Pixel (GLsizei width, GLsizei height, GLsizei depth) const
	Returns the pixel at the specified coordinates.
double	Component (GLsizei width, GLsizei height, GLsizei depth, GLsizei component) const
	Returns the component of the pixel at the specified coordinates.
template<typename T >
T	ComponentAs (GLsizei width, GLsizei height, GLsizei depth, GLsizei component) const
	Returns the component of the pixel at the specified coordinates.

Detailed Description

Creates a Red (one components per pixel) seamless 2D metaballs image.

Constructor & Destructor Documentation

oglplus::images::BaseMetaballs::BaseMetaballs	(	GLsizei	width,
		GLsizei	height,
		const GLfloat *	balls,
		std::size_t	size,
		std::size_t	n_per_ball
	)

Creates an image with specified dimensions.

Parameters

width	the width of the image
height	the height of the image
balls	the metaball data. This array contains the metaball parameters: 3, 4 or 5 values per single metaball. The first two values are the x, y coordinates of the center of the balls normalized to (0, 1). The third value is the radius of the ball, also normalized to (0, 1). If four values are specified then meta-stars are generated and the fourth value is the number of star's points. If five values are used then the fifth value controls the 'pointiness' of the star, normalized to (0, 1).
size	the number of values in the balls array.
n_per_ball	the number of values per single ball in the balls array.

Precondition

(balls) && (size) && (size % n_per_ball == 0)

Member Function Documentation

GLsizei oglplus::images::Image::Dimension ( std::size_t  i ) const

inherited

Returns the i-th dimension of the image.

0: Width 1: Height 2: Depth 3: Channels

References oglplus::images::Image::Channels(), oglplus::images::Image::Depth(), oglplus::images::Image::Height(), and oglplus::images::Image::Width().

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The documentation for this class was generated from the following file:

• /home/chochlik/devel/oglplus/include/oglplus/images/metaballs.hpp