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vtkTextureMapToCylinder Class Reference

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

#include <vtkTextureMapToCylinder.h>

Inheritance diagram for vtkTextureMapToCylinder:

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Collaboration diagram for vtkTextureMapToCylinder:

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List of all members.

Public Methods

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
virtual void SetPoint1 (float, float, float)
virtual void SetPoint1 (float[3])
virtual float * GetPoint1 ()
virtual void GetPoint1 (float data[3])
virtual void SetPoint2 (float, float, float)
virtual void SetPoint2 (float[3])
virtual float * GetPoint2 ()
virtual void GetPoint2 (float data[3])
virtual void SetAutomaticCylinderGeneration (int)
virtual int GetAutomaticCylinderGeneration ()
virtual void AutomaticCylinderGenerationOn ()
virtual void AutomaticCylinderGenerationOff ()
virtual void SetPreventSeam (int)
virtual int GetPreventSeam ()
virtual void PreventSeamOn ()
virtual void PreventSeamOff ()

Static Public Methods

int IsTypeOf (const char *type)
vtkTextureMapToCylinder * SafeDownCast (vtkObject *o)
vtkTextureMapToCylinder * New ()

Protected Methods

 vtkTextureMapToCylinder ()
 ~vtkTextureMapToCylinder ()
 vtkTextureMapToCylinder (const vtkTextureMapToCylinder &)
void operator= (const vtkTextureMapToCylinder &)
void Execute ()

Protected Attributes

float Point1 [3]
float Point2 [3]
int AutomaticCylinderGeneration
int PreventSeam

Detailed Description

generate texture coordinates by mapping points to cylinder.

Date:
2000/12/10 20:08:55
Revision:
1.23

vtkTextureMapToCylinder is a filter that generates 2D texture coordinates by mapping input dataset points onto a cylinder. The cylinder can either be user specified or generated automatically. (The cylinder is generated automatically by computing the axis of the cylinder.) Note that the generated texture coordinates for the s-coordinate ranges from (0-1) (corresponding to angle of 0->360 around axis), while the mapping of the t-coordinate is controlled by the projection of points along the axis.

To specify a cylinder manually, you must provide two points that define the axis of the cylinder. The length of the axis will affect the t-coordinates.

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:
Since the resulting texture s-coordinate will lie between (0,1), and the origin of the texture coordinates is not user-controllable, you may want to use the class vtkTransformTexture to linearly scale and shift the origin of the texture coordinates.
See also:
vtkTextureMapToPlane vtkTextureMapToSphere vtkTextureMapToBox vtkTransformTexture vtkThresholdTextureCoords
Examples:
vtkTextureMapToCylinder (examples)

Definition at line 80 of file vtkTextureMapToCylinder.h.


Constructor & Destructor Documentation

vtkTextureMapToCylinder::vtkTextureMapToCylinder   [protected]
 

vtkTextureMapToCylinder::~vtkTextureMapToCylinder   [inline, protected]
 

Definition at line 115 of file vtkTextureMapToCylinder.h.

vtkTextureMapToCylinder::vtkTextureMapToCylinder const vtkTextureMapToCylinder &    [inline, protected]
 

Definition at line 116 of file vtkTextureMapToCylinder.h.


Member Function Documentation

virtual const char* vtkTextureMapToCylinder::GetClassName   [virtual]
 

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkDataSetToDataSetFilter.

int vtkTextureMapToCylinder::IsTypeOf const char *    type [static]
 

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkDataSetToDataSetFilter.

virtual int vtkTextureMapToCylinder::IsA const char *    type [virtual]
 

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkDataSetToDataSetFilter.

vtkTextureMapToCylinder* vtkTextureMapToCylinder::SafeDownCast vtkObject   o [static]
 

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkDataSetToDataSetFilter.

void vtkTextureMapToCylinder::PrintSelf ostream &    os,
vtkIndent    indent
[virtual]
 

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkSource.

vtkTextureMapToCylinder* vtkTextureMapToCylinder::New   [static]
 

Create object with cylinder axis parallel to z-axis (points (0,0,-0.5) and (0,0,0.5)). The PreventSeam ivar is set to true. The cylinder is automatically generated.

Reimplemented from vtkDataSetSource.

virtual void vtkTextureMapToCylinder::SetPoint1 float   ,
float   ,
float   
[virtual]
 

Specify the first point defining the cylinder axis,

virtual void vtkTextureMapToCylinder::SetPoint1 float   [3] [virtual]
 

virtual float* vtkTextureMapToCylinder::GetPoint1   [virtual]
 

virtual void vtkTextureMapToCylinder::GetPoint1 float    data[3] [virtual]
 

virtual void vtkTextureMapToCylinder::SetPoint2 float   ,
float   ,
float   
[virtual]
 

Specify the second point defining the cylinder axis,

virtual void vtkTextureMapToCylinder::SetPoint2 float   [3] [virtual]
 

virtual float* vtkTextureMapToCylinder::GetPoint2   [virtual]
 

virtual void vtkTextureMapToCylinder::GetPoint2 float    data[3] [virtual]
 

virtual void vtkTextureMapToCylinder::SetAutomaticCylinderGeneration int    [virtual]
 

Turn on/off automatic cylinder generation. This means it automatically finds the cylinder center and axis.

virtual int vtkTextureMapToCylinder::GetAutomaticCylinderGeneration   [virtual]
 

virtual void vtkTextureMapToCylinder::AutomaticCylinderGenerationOn   [virtual]
 

virtual void vtkTextureMapToCylinder::AutomaticCylinderGenerationOff   [virtual]
 

virtual void vtkTextureMapToCylinder::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 angle variation from 0->180 and 180->0. Otherwise, the s-coordinate ranges from 0->1 from 0->360 degrees.

virtual int vtkTextureMapToCylinder::GetPreventSeam   [virtual]
 

virtual void vtkTextureMapToCylinder::PreventSeamOn   [virtual]
 

virtual void vtkTextureMapToCylinder::PreventSeamOff   [virtual]
 

void vtkTextureMapToCylinder::operator= const vtkTextureMapToCylinder &    [inline, protected]
 

Definition at line 117 of file vtkTextureMapToCylinder.h.

void vtkTextureMapToCylinder::Execute   [protected, virtual]
 

Reimplemented from vtkSource.


Member Data Documentation

float vtkTextureMapToCylinder::Point1[3] [protected]
 

Definition at line 121 of file vtkTextureMapToCylinder.h.

float vtkTextureMapToCylinder::Point2[3] [protected]
 

Definition at line 122 of file vtkTextureMapToCylinder.h.

int vtkTextureMapToCylinder::AutomaticCylinderGeneration [protected]
 

Definition at line 123 of file vtkTextureMapToCylinder.h.

int vtkTextureMapToCylinder::PreventSeam [protected]
 

Definition at line 124 of file vtkTextureMapToCylinder.h.


The documentation for this class was generated from the following file:
Generated on Wed Nov 21 13:00:49 2001 for VTK by doxygen1.2.11.1 written by Dimitri van Heesch, © 1997-2001