WireframeTorus Class Reference

Class derived from the Torus abstract class. It manages drawing of a rotating wireframed unicolor torus. Apart from inherited components, it manages a buffer that stores indices needed for the glDrawElements() call and also is of determining those indices. As input attributes, it directly passes the vertices of a torus. More...

#include <WireframeTorus.h>

Inheritance diagram for WireframeTorus:

Public Member Functions
	WireframeTorus (float torusRadius, float circleRadius)
	Instantiates a representation of a solid torus, using user-provided radius and tube radius. More...
	~WireframeTorus (void)
void	draw (float *rotationVector)
	Draw the torus model. More...
Public Member Functions inherited from Torus
virtual	~Torus (void)
	Frees allocated memory. More...
void	setProjectionMatrix (MaliSDK::Matrix *projectionMatrix)
	Pass the correctly defined projection matrix to the program related to the torus model. More...

Private Member Functions
void	initializeBufferForIndices (void)
	Determine indices needed for a single glDrawElements() call in GL_LINES mode. More...
bool	initializeVertexAttribs (void)
	Initialize vertex attribute arrays and buffer objects coresponding to them. Make sure that programID has been set before this function is called. More...

Private Attributes
GLuint	indicesBufferID

Static Private Attributes
static const unsigned int	indicesCount = 4 * circlesCount * pointsPerCircleCount

Additional Inherited Members
Static Public Member Functions inherited from Torus
static void	setResourceDirectory (std::string requiredResourceDirectory)
	Set the resource directory for all tori. More...
Protected Member Functions inherited from Torus
	Torus (void)
	Protected constructor used to do intialization general to all torus objects. More...
void	setColor (float red, float green, float blue, float alpha)
	Sets the uniform color of the drawn torus. More...
void	setupGraphics (const std::string vertexShaderPath, const std::string fragmentShaderPath)
	Initialize constant OpenGL components such as program, shaders and constant matrices. More...
Protected Attributes inherited from Torus
float	torusRadius
	Distance between the center of torus and the center of its tube. More...
float	circleRadius
	Radius of circles that model the tube. More...
GLuint	programID
	ID of a program linked to the torus model. More...
GLuint	vaoID
	ID of a vertex array object that stores pointers to vertex data sources used to rasterize given mesh. More...
Static Protected Attributes inherited from Torus
static std::string	resourceDirectory
static const unsigned int	vertexComponentsCount = 4
	Number of coordinates for one vertex. More...
static const unsigned int	circlesCount = 12
	Number of circles in torus model. More...
static const unsigned int	pointsPerCircleCount = 12
	Number of points in one circle. More...
static const unsigned int	torusVerticesCount = pointsPerCircleCount * circlesCount
	Total number of vertices in torus model. More...
static const unsigned int	componentsCount = torusVerticesCount * vertexComponentsCount
	Total number of components in torus model, needed to determine the size of vertex arrays. More...

Detailed Description

Class derived from the Torus abstract class. It manages drawing of a rotating wireframed unicolor torus. Apart from inherited components, it manages a buffer that stores indices needed for the glDrawElements() call and also is of determining those indices. As input attributes, it directly passes the vertices of a torus.

Definition at line 32 of file WireframeTorus.h.

Constructor & Destructor Documentation

WireframeTorus::WireframeTorus	(	float	torusRadius,
		float	circleRadius
	)

Instantiates a representation of a solid torus, using user-provided radius and tube radius.

Parameters

torusRadius	[in] Distance between the center of torus and the center of its tube.
circleRadius	[in] Radius of the circle that models the tube.

Definition at line 35 of file WireframeTorus.cpp.

WireframeTorus::~WireframeTorus

(

void

)

Definition at line 60 of file WireframeTorus.cpp.

Member Function Documentation

void WireframeTorus::draw ( float *  rotationVector )

virtual

Draw the torus model.

Parameters

rotationVector

Vector with rotation parameters to be passed to the vertex shader.

Implements Torus.

Definition at line 79 of file WireframeTorus.cpp.

void WireframeTorus::initializeBufferForIndices ( void  )

private

Determine indices needed for a single glDrawElements() call in GL_LINES mode.

Definition at line 65 of file WireframeTorus.cpp.

bool WireframeTorus::initializeVertexAttribs ( void  )

privatevirtual

Initialize vertex attribute arrays and buffer objects coresponding to them. Make sure that programID has been set before this function is called.

Returns

false if error reported, true otherwise.

Implements Torus.

Definition at line 96 of file WireframeTorus.cpp.

Member Data Documentation

GLuint WireframeTorus::indicesBufferID

private

Definition at line 40 of file WireframeTorus.h.

const unsigned int WireframeTorus::indicesCount = 4 * circlesCount * pointsPerCircleCount

staticprivate

Definition at line 37 of file WireframeTorus.h.

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

• /mnt/d/working/gitlab/opengles-sdk-android/samples/tutorials/InstancedTessellation/jni/WireframeTorus.h
• /mnt/d/working/gitlab/opengles-sdk-android/samples/tutorials/InstancedTessellation/jni/WireframeTorus.cpp