VAPoR::TwoDRenderer Class Reference

#include <TwoDRenderer.h>

Inheritance diagram for VAPoR::TwoDRenderer:

Public Member Functions
	TwoDRenderer (const ParamsMgr *pm, string winName, string dataSetName, string paramsType, string classType, string instName, DataMgr *dataMgr)
virtual	~TwoDRenderer ()
	Destructor.
Public Member Functions inherited from VAPoR::Renderer
	Renderer (const ParamsMgr *pm, string winName, string dataSetName, string paramsType, string classType, string instName, DataMgr *dataMgr)
virtual	~Renderer ()
double	GetDefaultZ (DataMgr *dataMgr, size_t ts) const
virtual int	paintGL (bool fast)
void	ClearCache ()
void	renderColorbar ()
	Render the colorbar for this renderer (if it has one)
RenderParams *	GetActiveParams () const
ViewpointParams *	GetViewpointParams () const
AnnotationParams *	GetAnnotationParams () const
Transform *	GetDatasetTransform () const
Public Member Functions inherited from VAPoR::RendererBase
	RendererBase (const ParamsMgr *pm, string winName, string dataSetName, string paramsType, string classType, string instName, DataMgr *dataMgr)
virtual	~RendererBase ()
virtual int	initializeGL (GLManager *glManager)
string	GetVisualizer ()
	Obtain the Visualizer associated with this Renderer.
string	GetMyName () const
string	GetInstanceName () const
string	GetMyType () const
string	GetMyParamsType () const
string	GetMyDatasetName () const
bool	IsGLInitialized () const
void	FlagForDeletion ()
bool	IsFlaggedForDeletion () const
	RendererBase ()
Public Member Functions inherited from Wasp::MyBase
	MyBase ()
const string &	getClassName () const

Protected Member Functions
virtual int	GetMesh (DataMgr *dataMgr, GLfloat **verts, GLfloat **normals, GLsizei &nverts, GLsizei &width, GLsizei &height, GLuint **indices, GLsizei &nindices, bool &structuredMesh)=0
virtual const GLvoid *	GetTexture (DataMgr *dataMgr, GLsizei &width, GLsizei &height, GLint &internalFormat, GLenum &format, GLenum &type, size_t &texelSize, bool &gridAligned)=0
virtual void	_clearCache ()=0
virtual int	_initializeGL ()
virtual int	_paintGL (bool fast)
	All OpenGL rendering is performed in the pure virtual paintGL method.
void	ComputeNormals (const GLfloat *verts, GLsizei w, GLsizei h, GLfloat *normals)
Protected Member Functions inherited from VAPoR::Renderer
	Renderer ()
virtual std::string	_getColorbarVariableName () const
virtual int	_paintGL (bool fast)=0
	All OpenGL rendering is performed in the pure virtual paintGL method.
void	EnableClipToBox (ShaderProgram *shader, float haloFrac=0.0) const
void	DisableClippingPlanes ()
void	GetClippingPlanes (float planes[24]) const
virtual bool	VariableExists (size_t ts, std::vector< string > &varnames, int level, int lod, bool zeroOK) const
virtual void	_clearCache ()=0
virtual int	_initializeGL ()=0
Protected Member Functions inherited from Wasp::MyBase
void	SetClassName (const string &name)

Additional Inherited Members
Public Types inherited from Wasp::MyBase
typedef void(*	ErrMsgCB_T) (const char *msg, int err_code)
typedef void(*	DiagMsgCB_T) (const char *msg)
Static Public Member Functions inherited from VAPoR::Renderer
static void	ApplyTransform (GLManager *gl, const Transform *dataset, const Transform *renderer)
static void	ApplyDatasetTransform (GLManager *gl, const Transform *dataset)
Static Public Member Functions inherited from Wasp::MyBase
static void	SetErrMsg (const char *format,...)
	Record a formatted error message.
static void	SetErrMsg (int errcode, const char *format,...)
	Record a formatted error message and an error code.
static const char *	GetErrMsg ()
static void	SetErrCode (int err_code)
	Record an error code.
static int	GetErrCode ()
	Retrieve the current error code.
static void	SetErrMsgCB (ErrMsgCB_T cb)
static ErrMsgCB_T	GetErrMsgCB ()
static void	SetErrMsgFilePtr (FILE *fp)
static const FILE *	SetErrMsgFilePtr ()
static void	SetDiagMsg (const char *format,...)
	Record a formatted diagnostic message.
static const char *	GetDiagMsg ()
static void	SetDiagMsgCB (DiagMsgCB_T cb)
static DiagMsgCB_T	GetDiagMsgCB ()
static void	SetDiagMsgFilePtr (FILE *fp)
static bool	EnableErrMsg (bool enable)
static bool	GetEnableErrMsg ()
Static Public Attributes inherited from Wasp::MyBase
static char *	ErrMsg
static int	ErrCode
static int	ErrMsgSize
static FILE *	ErrMsgFilePtr
static ErrMsgCB_T	ErrMsgCB
static char *	DiagMsg
static int	DiagMsgSize
static FILE *	DiagMsgFilePtr
static DiagMsgCB_T	DiagMsgCB
static bool	Enabled
Protected Attributes inherited from VAPoR::Renderer
unsigned char *	_colorbarTexture
string	_fontName
Protected Attributes inherited from VAPoR::RendererBase
const ParamsMgr *	_paramsMgr
string	_winName
string	_dataSetName
string	_paramsType
string	_classType
string	_instName
DataMgr *	_dataMgr
GLManager *	_glManager
Static Protected Attributes inherited from VAPoR::Renderer
static const int	_imgHgt
static const int	_imgWid

Detailed Description

Author

John Clyne

Version

3.0

Date

March 2016

Definition at line 25 of file TwoDRenderer.h.

Constructor & Destructor Documentation

TwoDRenderer()

VAPoR::TwoDRenderer::TwoDRenderer	(	const ParamsMgr *	pm,
		string	winName,
		string	dataSetName,
		string	paramsType,
		string	classType,
		string	instName,
		DataMgr *	dataMgr
	)

Constructor, must invoke Renderer constructor

Parameters

[in]	Visualizer*	pointer to the visualizer where this will draw
[in]	RenderParams*	pointer to the ArrowParams describing this renderer

~TwoDRenderer()

virtual VAPoR::TwoDRenderer::~TwoDRenderer ( )

virtual

Destructor.

Member Function Documentation

_clearCache()

virtual void VAPoR::TwoDRenderer::_clearCache ( )

protectedpure virtual

Implements VAPoR::Renderer.

_initializeGL()

virtual int VAPoR::TwoDRenderer::_initializeGL ( )

protectedvirtual

Pure virtual method Any OpenGL initialization is performed in initializeGL It will be called from an OpenGL rendering context.

Implements VAPoR::RendererBase.

Reimplemented in VAPoR::TwoDDataRenderer.

_paintGL()

virtual int VAPoR::TwoDRenderer::_paintGL ( bool  fast )

protectedvirtual

All OpenGL rendering is performed in the pure virtual paintGL method.

Implements VAPoR::Renderer.

Reimplemented in VAPoR::TwoDDataRenderer.

ComputeNormals()

void VAPoR::TwoDRenderer::ComputeNormals ( const GLfloat *  verts, GLsizei  w, GLsizei  h, GLfloat *  normals  )

protected

Compute 2D surface normals at each vertex.

This protected method can be used by derived classes to calculate unitized normals from a set of vertices by calculating the gradient at each vertex. The normal vectors are determined by looking at z-coords of adjacent vertices in both x and y. Suppose that dzx is the change in z associated with an x-change of dz, and that dzy is the change in z associated with a y-change of dy. Let the normal vector be (a,b,c). Then a/c is equal to dzx/dx, and b/c is equal to dzy/dy. So (a,b,c) is proportional to (dzx*dy, dzy*dx, 1)

Parameters

[in]	verts	A pointer to a 2D array of surface vertices, dimensioned w by h by 3. Vertices are store as inteleaved triplets: vx0, vy0, vz0, vx1, vy1, vz1, ... vxn, vyn, vzn, where n = w * h - 1
[in]	w	Width (length of fastest varying dimension) of verts in grid points
[in]	h	Height (length of second fastest varying dimension) of verts in grid points
[out]	normals	A pointer to a 2D array of the same size as verts that will contain the computed, unitized surface normals, stored in interleaved form.

GetMesh()

virtual int VAPoR::TwoDRenderer::GetMesh ( DataMgr *  dataMgr, GLfloat **  verts, GLfloat **  normals, GLsizei &  nverts, GLsizei &  width, GLsizei &  height, GLuint **  indices, GLsizei &  nindices, bool &  structuredMesh  )

protectedpure virtual

Implemented in VAPoR::ImageRenderer, and VAPoR::TwoDDataRenderer.

GetTexture()

virtual const GLvoid * VAPoR::TwoDRenderer::GetTexture ( DataMgr *  dataMgr, GLsizei &  width, GLsizei &  height, GLint &  internalFormat, GLenum &  format, GLenum &  type, size_t &  texelSize, bool &  gridAligned  )

protectedpure virtual

Implemented in VAPoR::ImageRenderer, and VAPoR::TwoDDataRenderer.

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

• /Users/pearse/VAPOR/include/vapor/TwoDRenderer.h