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vtkTextureMapToSphere Class Reference

generate texture coordinates by mapping points to sphere More...

#include <vtkTextureMapToSphere.h>

Inherits vtkDataSetAlgorithm.

Public Types

typedef vtkDataSetAlgorithm Superclass
 

Public Member Functions

virtual int IsA (const char *type)
 
vtkTextureMapToSphereNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual void SetCenter (double, double, double)
 
virtual void SetCenter (double[3])
 
virtual double * GetCenter ()
 
virtual void GetCenter (double data[3])
 
virtual void SetAutomaticSphereGeneration (int)
 
virtual int GetAutomaticSphereGeneration ()
 
virtual void AutomaticSphereGenerationOn ()
 
virtual void AutomaticSphereGenerationOff ()
 
virtual void SetPreventSeam (int)
 
virtual int GetPreventSeam ()
 
virtual void PreventSeamOn ()
 
virtual void PreventSeamOff ()
 

Static Public Member Functions

static int IsTypeOf (const char *type)
 
static vtkTextureMapToSphereSafeDownCast (vtkObjectBase *o)
 
static vtkTextureMapToSphereNew ()
 

Protected Member Functions

virtual vtkObjectBase * NewInstanceInternal () const
 
 vtkTextureMapToSphere ()
 
 ~vtkTextureMapToSphere ()
 
int RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 

Protected Attributes

double Center [3]
 
int AutomaticSphereGeneration
 
int PreventSeam
 

Detailed Description

generate texture coordinates by mapping points to sphere

vtkTextureMapToSphere is a filter that generates 2D texture coordinates by mapping input dataset points onto a sphere. The sphere can either be user specified or generated automatically. (The sphere is generated automatically by computing the center (i.e., averaged coordinates) of the sphere.) Note that the generated texture coordinates range between (0,1). The s-coordinate lies in the angular direction around the z-axis, measured counter-clockwise from the x-axis. The t-coordinate lies in the angular direction measured down from the north pole towards the south pole.

A special ivar controls how the s-coordinate is generated. If PreventSeam is set to true, the s-texture varies from 0->1 and then 1->0 (corresponding to angles of 0->180 and 180->360).

Warning
The resulting texture coordinates will lie between (0,1), and the texture coordinates are determined with respect to the modeler's x-y-z coordinate system. Use the class vtkTransformTextureCoords to linearly scale and shift the origin of the texture coordinates (if necessary).
See Also
vtkTextureMapToPlane vtkTextureMapToCylinder vtkTransformTexture vtkThresholdTextureCoords
Examples:
vtkTextureMapToSphere (Examples)
Tests:
vtkTextureMapToSphere (Tests)

Definition at line 55 of file vtkTextureMapToSphere.h.

Member Typedef Documentation

typedef vtkDataSetAlgorithm vtkTextureMapToSphere::Superclass

Definition at line 58 of file vtkTextureMapToSphere.h.

Constructor & Destructor Documentation

vtkTextureMapToSphere::vtkTextureMapToSphere ( )
protected
vtkTextureMapToSphere::~vtkTextureMapToSphere ( )
inlineprotected

Definition at line 91 of file vtkTextureMapToSphere.h.

Member Function Documentation

static int vtkTextureMapToSphere::IsTypeOf ( const char *  type)
static
virtual int vtkTextureMapToSphere::IsA ( const char *  type)
virtual
static vtkTextureMapToSphere* vtkTextureMapToSphere::SafeDownCast ( vtkObjectBase *  o)
static
virtual vtkObjectBase* vtkTextureMapToSphere::NewInstanceInternal ( ) const
protectedvirtual
vtkTextureMapToSphere* vtkTextureMapToSphere::NewInstance ( ) const
void vtkTextureMapToSphere::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
static vtkTextureMapToSphere* vtkTextureMapToSphere::New ( )
static

Create object with Center (0,0,0) and the PreventSeam ivar is set to true. The sphere center is automatically computed.

virtual void vtkTextureMapToSphere::SetCenter ( double  ,
double  ,
double   
)
virtual

Specify a point defining the center of the sphere.

virtual void vtkTextureMapToSphere::SetCenter ( double  [3])
virtual

Specify a point defining the center of the sphere.

virtual double* vtkTextureMapToSphere::GetCenter ( )
virtual

Specify a point defining the center of the sphere.

virtual void vtkTextureMapToSphere::GetCenter ( double  data[3])
virtual

Specify a point defining the center of the sphere.

virtual void vtkTextureMapToSphere::SetAutomaticSphereGeneration ( int  )
virtual

Turn on/off automatic sphere generation. This means it automatically finds the sphere center.

virtual int vtkTextureMapToSphere::GetAutomaticSphereGeneration ( )
virtual

Turn on/off automatic sphere generation. This means it automatically finds the sphere center.

virtual void vtkTextureMapToSphere::AutomaticSphereGenerationOn ( )
virtual

Turn on/off automatic sphere generation. This means it automatically finds the sphere center.

virtual void vtkTextureMapToSphere::AutomaticSphereGenerationOff ( )
virtual

Turn on/off automatic sphere generation. This means it automatically finds the sphere center.

virtual void vtkTextureMapToSphere::SetPreventSeam ( int  )
virtual

Control how the texture coordinates are generated. If PreventSeam is set, the s-coordinate ranges from 0->1 and 1->0 corresponding to the theta angle variation between 0->180 and 180->0 degrees. Otherwise, the s-coordinate ranges from 0->1 between 0->360 degrees.

virtual int vtkTextureMapToSphere::GetPreventSeam ( )
virtual

Control how the texture coordinates are generated. If PreventSeam is set, the s-coordinate ranges from 0->1 and 1->0 corresponding to the theta angle variation between 0->180 and 180->0 degrees. Otherwise, the s-coordinate ranges from 0->1 between 0->360 degrees.

virtual void vtkTextureMapToSphere::PreventSeamOn ( )
virtual

Control how the texture coordinates are generated. If PreventSeam is set, the s-coordinate ranges from 0->1 and 1->0 corresponding to the theta angle variation between 0->180 and 180->0 degrees. Otherwise, the s-coordinate ranges from 0->1 between 0->360 degrees.

virtual void vtkTextureMapToSphere::PreventSeamOff ( )
virtual

Control how the texture coordinates are generated. If PreventSeam is set, the s-coordinate ranges from 0->1 and 1->0 corresponding to the theta angle variation between 0->180 and 180->0 degrees. Otherwise, the s-coordinate ranges from 0->1 between 0->360 degrees.

int vtkTextureMapToSphere::RequestData ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protected

Member Data Documentation

double vtkTextureMapToSphere::Center[3]
protected

Definition at line 95 of file vtkTextureMapToSphere.h.

int vtkTextureMapToSphere::AutomaticSphereGeneration
protected

Definition at line 96 of file vtkTextureMapToSphere.h.

int vtkTextureMapToSphere::PreventSeam
protected

Definition at line 97 of file vtkTextureMapToSphere.h.


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