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GLT


Files
file	buffer.cpp
file	buffer.h
	OpenGL Framebuffer Classes.
file	colmap.cpp
file	colmap.h
	One Dimensional Color-Mapping Class.
file	color.cpp
file	color.h
	OpenGL Color Interface.
file	config.cpp
file	config.h
	GLT Configuration File.
file	countsrf.cpp
file	countsrf.h
	Surface Counting Interface.
file	cursor.cpp
file	cursor.h
	OpenGL Cursor Interface.
file	dlcache.cpp
file	dlcache.h
	Display List Cache.
file	error.cpp
file	error.h
	OpenGL Debugging Tools.
file	font.cpp
file	font.h
	OpenGL Font Interface.
file	fontasci.cpp
file	fontasci.h
	Ascii OpenGL Font Interface.
file	fonttex.cpp
file	fonttex.h
	Textured OpenGL Font.
file	fontunic.cpp
file	fontunic.h
	OpenGL Unicode Font Class.
file	frame.cpp
file	frame.h
	OpenGL Frame Rate Information.
file	gl.h
	OpenGL (proxy) header file.
file	glu.h
	GLU (proxy) header file.
file	info.cpp
file	info.h
	Output OpenGL information.
file	light.cpp
file	light.h
	OpenGL Light Source Class.
file	lightm.cpp
file	lightm.h
	OpenGL Lighting Model Class.
file	material.cpp
file	material.h
	OpenGL Material Class.
file	matrix.cpp
file	matrix.h
	OpenGL Matrix Manipulation.
file	mcubes.cpp
file	mcubes.cpp
file	mcubes.h
	Marching Cubes Interface.
file	project.cpp
file	project.h
	OpenGL Projection Classes.
file	raster.cpp
file	raster.h
	OpenGL Raster Position Class.
file	rgb.cpp
file	rgb.h
	OpenGL Convenience Colors.
file	texture.cpp
file	texture.h
	OpenGL Texture Class.
file	viewport.cpp
file	viewport.h
	OpenGL Viewport Class.
file	zplane.cpp
file	zplane.h
	Z-Plane Drawing.
file	zvis.cpp
file	zvis.h
	OpenGL Z-Buffer Visualisation.
Compounds
class	GltFrameBuffer
	Base class for framebuffer interfaces. More...
class	GltFrameBufferRGB
	RGB frame buffer interface. More...
class	GltFrameBufferZ
	Z-buffer interface. More...
class	GltFrameBufferStencil
	Stencil buffer interface. More...
class	GltColorMap
	One Dimensional Color-Mapping Class. More...
class	GltColor
	OpenGL RGB Color. More...
class	GltClearColor
	OpenGL RGB Clear Color. More...
class	GltCursor
	Cursor position class. More...
class	GltDisplayListCache
	Display List Cache. More...
class	GltFont
	Abstract base class for bitmap fonts. More...
class	GltFontAscii
	GLT ASCII font class. More...
class	GltFontTexture
	GLT Textured font class. More...
class	GltFontUnicode
	OpenGL Unicode Font Class. More...
class	GltFrameRate
	OpenGL Frame Rate Information Class. More...
class	GltLight
	OpenGL Light Source Class. More...
class	GltLightModel
	OpenGL Lighting Model Class. More...
class	GltMaterial
	OpenGL Material Class. More...
class	GltPushMatrix
	OpenGL Push-Matrix Convenience Class. More...
class	GltOrtho
	OpenGL Orthographic Camera Class. More...
class	GltFrustum
	OpenGL Perspective Camera Class. More...
class	GltRasterPos
	OpenGL Raster Position Class. More...
class	GltTexture
	OpenGL Texture Class. More...
class	GltViewport
	OpenGL Viewport Class. More...
class	GltSkyBox
	OpenGL Sky Box. More...
class	GltSkySphere
	OpenGL Sphere Box. More...
Defines
#define	GLERROR
	Check OpenGL error state.
Typedefs
typedef GltFrameBufferZ< GLfloat, GL_FLOAT >	GltFrameBufferZFloat
	Floating point z-buffer.
typedef GltFrameBufferZ< GLushort, GL_UNSIGNED_SHORT >	GltFrameBufferZShort
	Unsigned short z-buffer.
typedef GltFrameBufferZ< GLuint, GL_UNSIGNED_INT >	GltFrameBufferZUint
	Unsigned integer z-buffer.
typedef GltFrameBufferStencil< GLubyte, GL_UNSIGNED_BYTE >	GltFrameBufferStencilUbyte
	Unsigned byte stencil buffer.
Enumerations
enum	GltTextureType { TEXTURE_TYPE_RGB = 0, TEXTURE_TYPE_RGBA, TEXTURE_TYPE_GREY, TEXTURE_TYPE_GREYA, TEXTURE_TYPE_ALPHA, TEXTURE_TYPE_BITMAP, TEXTURE_TYPE_INDEXED_RGB, TEXTURE_TYPE_INDEXED_RGBA }
	GLT texture types. More...
Functions
GltColor	operator * (const GltColor &c, const real x)
	Scale color.
GltColor	operator/ (const GltColor &c, const real x)
	Scale color.
GltColor	operator * (const real x, const GltColor &c)
	Scale color.
GltColor	operator+ (const GltColor &c1, const GltColor &c2)
	Add red, green and blue components.
GltColor	operator- (const GltColor &c1, const GltColor &c2)
	Subtract red, green and blue components.
void	countSurfaces (const GltShape &shape)
	Use the stencil buffer to count the number of surfaces drawn at each pixel.
GLubyte	countSurfaces (const GltShape &shape, const countSurfacesMode mode)
	Use the stencil buffer to count the number of surfaces drawn at each pixel.
GLubyte	countSurfacesVisualise (const GltShape &shape)
	Visualise the number of rendered surfaces at each pixel.
GLuint	stencilHistogram (GLuint histogram[256])
	Extract a stencil buffer histogram for the current viewport.
void	glTranslate (const Vector &tr)
	OpenGL vector translation.
void	glScale (const Vector &sf)
	OpenGL non-uniform scale.
void	glScale (const GLdouble sf)
	OpenGL uniform scale.
void	glScale (const GLfloat sf)
	OpenGL uniform scale.
void	glScale (const GLint sf)
	OpenGL uniform scale.
void	glScale (const GLuint sf)
	OpenGL uniform scale.
void	glRotateX (const GLdouble angle, const Vector &axis)
	OpenGL rotation.
void	glRotateX (const GLdouble angle)
	OpenGL rotation around X axis.
void	glRotateX (const GLfloat angle)
	OpenGL rotation around X axis.
void	glRotateX (const GLint angle)
	OpenGL rotation around X axis.
void	glRotateX (const GLuint angle)
	OpenGL rotation around X axis.
void	glRotateY (const GLdouble angle)
	OpenGL rotation around Y axis.
void	glRotateY (const GLfloat angle)
	OpenGL rotation around Y axis.
void	glRotateY (const GLint angle)
	OpenGL rotation around Y axis.
void	glRotateY (const GLuint angle)
	OpenGL rotation around Y axis.
void	glRotateZ (const GLdouble angle)
	OpenGL rotation around Z axis.
void	glRotateZ (const GLfloat angle)
	OpenGL rotation around Z axis.
void	glRotateZ (const GLint angle)
	OpenGL rotation around Z axis.
void	glRotateZ (const GLuint angle)
	OpenGL rotation around Z axis.
int	GltMarchingCubes (GltFunc3d func, float minx, float miny, float minz, float maxx, float maxy, float maxz, int xsteps, int ysteps, int zsteps)
	Marching Cubes Algorithm.
void	drawZnear ()
	Draw an OpenGL polygon at Z-near, covering the viewport.
void	drawZfar ()
	Draw an OpenGL polygon at Z-far, covering the viewport.
void	drawZat (const GLdouble z)
	Draw an OpenGL polygon at a z-position, covering the viewport.

Define Documentation

#define GLERROR

Value:
{ \ GLenum code = glGetError(); \ while (code!=GL_NO_ERROR) \ { \ std::cerr << __FILE__; \ std::cerr << ':' << __LINE__; \ std::cerr << ' ' << (char *) gluErrorString(code) << std::endl; \ code = glGetError(); \ } \ }
Check OpenGL error state.

Note:
Does nothing if NDEBUG is defined

Definition at line 56 of file error.h.
Referenced by countSurfaces(), GltTextureViewport::draw(), GltTextOverlay::draw(), GltSkySphere::draw(), GltSkyBox::draw(), GltHistogram::draw(), GltFadeViewport::draw(), GlutTeapot::draw(), GlutIcosahedron::draw(), GlutTetrahedron::draw(), GlutOctahedron::draw(), GlutDodecahedron::draw(), GlutTorus::draw(), GlutCone::draw(), GlutCylinder::draw(), GlutCube::draw(), GlutSphere::draw(), GltViewport::get(), GltMaterial::get(), GltLight::get(), GltColor::glGetLight(), GltColor::glGetMaterial(), GltColor::glLight(), GltColor::glMaterial(), GltCursor::GltCursor(), GltInfo(), GltPushMatrix::GltPushMatrix(), GltTexture::init(), GltFrameBufferStencil< StencilType, GlStencilType >::read(), GltFrameBufferZ< DepthType, GlDepthType >::read(), GltViewport::set(), GltMaterial::set(), GltFrameBufferStencil< StencilType, GlStencilType >::write(), GltFrameBufferZ< DepthType, GlDepthType >::write(), GltCursor::~GltCursor(), and GltPushMatrix::~GltPushMatrix().

Enumeration Type Documentation

enum GltTexture::GltTextureType [inherited]

GLT texture types.

Enumeration values:

TEXTURE_TYPE_RGB RGB

TEXTURE_TYPE_RGBA RGBA

TEXTURE_TYPE_GREY Greyscale

TEXTURE_TYPE_GREYA Greyscale, Alpha

TEXTURE_TYPE_ALPHA Alpha

TEXTURE_TYPE_BITMAP Bitmap

TEXTURE_TYPE_INDEXED_RGB Indexed RGB

TEXTURE_TYPE_INDEXED_RGBA Indexed RGBA

Definition at line 151 of file texture.h.

Function Documentation

void countSurfaces ( const GltShape & shape )

Use the stencil buffer to count the number of surfaces drawn at each pixel.

Parameters:

shape Shapes

Warning:
Uses the current culling configuration

Definition at line 28 of file countsrf.cpp.

GLubyte countSurfaces ( const GltShape & shape,

const countSurfacesMode mode

)

Use the stencil buffer to count the number of surfaces drawn at each pixel.

Parameters:

shape Shapes

mode Count Mode

Returns:
Maximum number of surfaces covering a pixel
Warning:
Uses the current culling configuration

Definition at line 65 of file countsrf.cpp.
References COUNT_SURFACES_99TH_PERCENTILE, COUNT_SURFACES_ALL, countSurfacesMode, GLERROR, and stencilHistogram().
Referenced by countSurfacesVisualise().

GLubyte countSurfacesVisualise ( const GltShape & shape )

Visualise the number of rendered surfaces at each pixel.

Parameters:

shape Shapes

Returns:
Maximum number of surfaces covering a pixel
Warning:
Uses the current culling configuration

Definition at line 139 of file countsrf.cpp.
References COUNT_SURFACES_ALL, countSurfaces(), drawZnear(), GltColor::glColor(), and maxColors.

GLuint stencilHistogram ( GLuint histogram[256] )

Extract a stencil buffer histogram for the current viewport.

Parameters:

histogram Array of GLuint histogram entries

Returns:
Number of pixels in the current viewport

Definition at line 181 of file countsrf.cpp.
Referenced by countSurfaces().

void glTranslate ( const Vector & tr ) [inline]

OpenGL vector translation.

Parameters:

tr Distance to translate in x, y and z

Definition at line 77 of file matrix.h.
References Vector::x(), Vector::y(), and Vector::z().

void glScale ( const Vector & sf ) [inline]

OpenGL non-uniform scale.

Parameters:

sf Scaling factor in x, y and z

Definition at line 87 of file matrix.h.
References Vector::x(), Vector::y(), and Vector::z().

void glScale ( const GLdouble sf ) [inline]

OpenGL uniform scale.

Parameters:

sf Scaling factor

Definition at line 93 of file matrix.h.

void glScale ( const GLfloat sf ) [inline]

OpenGL uniform scale.

Parameters:

sf Scaling factor

Definition at line 99 of file matrix.h.

void glScale ( const GLint sf ) [inline]

OpenGL uniform scale.

Parameters:

sf Scaling factor

Definition at line 105 of file matrix.h.

void glScale ( const GLuint sf ) [inline]

OpenGL uniform scale.

Parameters:

sf Scaling factor

Definition at line 111 of file matrix.h.

void glRotateX ( const GLdouble angle,

const Vector & axis

) [inline]

OpenGL rotation.

Parameters:

angle Angle in degrees

axis Axis of rotation

Definition at line 122 of file matrix.h.
References Vector::x(), Vector::y(), and Vector::z().

void glRotateX ( const GLdouble angle ) [inline]

OpenGL rotation around X axis.

Parameters:

angle Angle in degrees

Definition at line 131 of file matrix.h.

void glRotateX ( const GLfloat angle ) [inline]

OpenGL rotation around X axis.

Parameters:

angle Angle in degrees

Definition at line 137 of file matrix.h.

void glRotateX ( const GLint angle ) [inline]

OpenGL rotation around X axis.

Parameters:

angle Angle in degrees

Definition at line 143 of file matrix.h.

void glRotateX ( const GLuint angle ) [inline]

OpenGL rotation around X axis.

Parameters:

angle Angle in degrees

Definition at line 149 of file matrix.h.
Referenced by GlutAxes::draw().

void glRotateY ( const GLdouble angle ) [inline]

OpenGL rotation around Y axis.

Parameters:

angle Angle in degrees

Definition at line 155 of file matrix.h.

void glRotateY ( const GLfloat angle ) [inline]

OpenGL rotation around Y axis.

Parameters:

angle Angle in degrees

Definition at line 161 of file matrix.h.

void glRotateY ( const GLint angle ) [inline]

OpenGL rotation around Y axis.

Parameters:

angle Angle in degrees

Definition at line 167 of file matrix.h.

void glRotateY ( const GLuint angle ) [inline]

OpenGL rotation around Y axis.

Parameters:

angle Angle in degrees

Definition at line 173 of file matrix.h.
Referenced by GlutAxes::draw().

void glRotateZ ( const GLdouble angle ) [inline]

OpenGL rotation around Z axis.

Parameters:

angle Angle in degrees

Definition at line 179 of file matrix.h.

void glRotateZ ( const GLfloat angle ) [inline]

OpenGL rotation around Z axis.

Parameters:

angle Angle in degrees

Definition at line 185 of file matrix.h.

void glRotateZ ( const GLint angle ) [inline]

OpenGL rotation around Z axis.

Parameters:

angle Angle in degrees

Definition at line 191 of file matrix.h.

void glRotateZ ( const GLuint angle ) [inline]

OpenGL rotation around Z axis.

Parameters:

angle Angle in degrees

Definition at line 197 of file matrix.h.

int GltMarchingCubes ( GltFunc3d func,

float minx,

float miny,

float minz,

float maxx,

float maxy,

float maxz,

int xsteps,

int ysteps,

int zsteps

)

Marching Cubes Algorithm.
A simple implementation of the marching cubes algorithm for tesselating a 3d function. The function is tesselated into triangle faces and drawn using OpenGL. You are free to use all or part of this code in your own programs as long as proper credit is given.
Parameters:

func Function to evaluate

minx Minimum X of bounding box

miny Minimum Y of bounding box

minz Minimum Z of bounding box

maxx Maximum X of bounding box

maxy Maximum Y of bounding box

maxz Maximum Z of bounding box

xsteps Level of detail in x direction

ysteps Level of detail in y direction

zsteps Level of detail in z direction

Returns:
1 on success, 0 on failure
Note:
The bounding box is axis aligned.
Author:
Steve Anger (70714.3113@compuserve.com)

Definition at line 66 of file mcubes.cpp.
References GltFunc3d.

Generated on Tue Nov 5 11:11:49 2002 for GLT by

1.2.18

GLT

Files

Compounds

Defines

Typedefs

Enumerations

Functions

Define Documentation

Enumeration Type Documentation

Function Documentation