generate texture coordinates by mapping points to sphere More...
#include <vtkTextureMapToSphere.h>
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)
Definition at line 55 of file vtkTextureMapToSphere.h.
Member Typedef Documentation
Reimplemented from vtkDataSetAlgorithm.
Definition at line 58 of file vtkTextureMapToSphere.h.
Constructor & Destructor Documentation
| vtkTextureMapToSphere::vtkTextureMapToSphere | ( | ) | [protected] |
| vtkTextureMapToSphere::~vtkTextureMapToSphere | ( | ) | [inline, protected] |
Definition at line 91 of file vtkTextureMapToSphere.h.
Member Function Documentation
| static int vtkTextureMapToSphere::IsTypeOf | ( | const char * | name | ) | [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 vtkDataSetAlgorithm.
| virtual int vtkTextureMapToSphere::IsA | ( | const char * | name | ) | [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 vtkDataSetAlgorithm.
| static vtkTextureMapToSphere* vtkTextureMapToSphere::SafeDownCast | ( | vtkObjectBase * | o | ) | [static] |
Reimplemented from vtkDataSetAlgorithm.
| virtual vtkObjectBase* vtkTextureMapToSphere::NewInstanceInternal | ( | ) | const [protected, virtual] |
Reimplemented from vtkDataSetAlgorithm.
Reimplemented from vtkDataSetAlgorithm.
| void vtkTextureMapToSphere::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 vtkDataSetAlgorithm.
| 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.
Reimplemented from vtkDataSetAlgorithm.
| 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, virtual] |
This is called within ProcessRequest when a request asks the algorithm to do its work. This is the method you should override to do whatever the algorithm is designed to do. This happens during the fourth pass in the pipeline execution process.
Reimplemented from vtkDataSetAlgorithm.
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:
- dox/Filters/Texture/vtkTextureMapToSphere.h
