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vtkTextureMapToSphere Class Reference
generate texture coordinates by mapping points to sphere.
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#include <vtkTextureMapToSphere.h>
Inheritance diagram for vtkTextureMapToSphere:
[legend]Collaboration diagram for vtkTextureMapToSphere:
[legend]List of all members.
Detailed Description
generate texture coordinates by mapping points to sphere.
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Date:
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2000/12/10 20:08:55
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Revision:
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1.22
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).
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Warning:
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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).
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See also:
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vtkTextureMapToPlane vtkTextureMapToCylinder vtkTextureMapToBox vtkTransformTexture vtkThresholdTextureCoords
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Examples:
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vtkTextureMapToSphere (examples)
Definition at line 78 of file vtkTextureMapToSphere.h.
Constructor & Destructor Documentation
| vtkTextureMapToSphere::vtkTextureMapToSphere |
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[protected] |
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| vtkTextureMapToSphere::~vtkTextureMapToSphere |
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[inline, protected] |
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| vtkTextureMapToSphere::vtkTextureMapToSphere |
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const vtkTextureMapToSphere & |
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[inline, protected] |
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Member Function Documentation
| virtual const char* vtkTextureMapToSphere::GetClassName |
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[virtual] |
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| int vtkTextureMapToSphere::IsTypeOf |
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const char * |
type |
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[static] |
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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 vtkTextureMapToSphere::IsA |
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const char * |
type |
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[virtual] |
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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. |
| vtkTextureMapToSphere* vtkTextureMapToSphere::SafeDownCast |
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vtkObject * |
o |
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[static] |
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| void vtkTextureMapToSphere::PrintSelf |
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ostream & |
os, |
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vtkIndent |
indent |
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[virtual] |
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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. |
| vtkTextureMapToSphere* vtkTextureMapToSphere::New |
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[static] |
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Create object with Center (0,0,0) and the PreventSeam ivar is set to true. The sphere center is automatically computed.
Reimplemented from vtkDataSetSource. |
| virtual void vtkTextureMapToSphere::SetCenter |
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float |
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float |
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float |
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[virtual] |
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Specify a point defining the center of the sphere. |
| virtual void vtkTextureMapToSphere::SetCenter |
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float |
[3] |
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[virtual] |
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| virtual float* vtkTextureMapToSphere::GetCenter |
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[virtual] |
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| virtual void vtkTextureMapToSphere::GetCenter |
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float |
data[3] |
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[virtual] |
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| virtual void vtkTextureMapToSphere::SetAutomaticSphereGeneration |
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int |
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[virtual] |
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Turn on/off automatic sphere generation. This means it automatically finds the sphere center. |
| virtual int vtkTextureMapToSphere::GetAutomaticSphereGeneration |
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[virtual] |
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| virtual void vtkTextureMapToSphere::AutomaticSphereGenerationOn |
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[virtual] |
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| virtual void vtkTextureMapToSphere::AutomaticSphereGenerationOff |
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[virtual] |
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| virtual void vtkTextureMapToSphere::SetPreventSeam |
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int |
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[virtual] |
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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 |
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[virtual] |
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| virtual void vtkTextureMapToSphere::PreventSeamOn |
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[virtual] |
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| virtual void vtkTextureMapToSphere::PreventSeamOff |
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[virtual] |
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| void vtkTextureMapToSphere::operator= |
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const vtkTextureMapToSphere & |
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[inline, protected] |
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| void vtkTextureMapToSphere::Execute |
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[protected, virtual] |
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Member Data Documentation
float vtkTextureMapToSphere::Center[3] [protected]
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int vtkTextureMapToSphere::AutomaticSphereGeneration [protected]
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int vtkTextureMapToSphere::PreventSeam [protected]
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The documentation for this class was generated from the following file:
Generated on Wed Nov 21 13:00:50 2001 for VTK by
1.2.11.1 written by Dimitri van Heesch,
© 1997-2001