vtkRotationalExtrusionFilter Class Reference
#include <vtkRotationalExtrusionFilter.h>
Inheritance diagram for vtkRotationalExtrusionFilter:
[legend]Collaboration diagram for vtkRotationalExtrusionFilter:
[legend]List of all members.
Detailed Description
sweep polygonal data creating "skirt" from free edges and lines, and lines from vertices
vtkRotationalExtrusionFilter is a modeling filter. It takes polygonal data as input and generates polygonal data on output. The input dataset is swept around the z-axis to create new polygonal primitives. These primitives form a "skirt" or swept surface. For example, sweeping a line results in a cylindrical shell, and sweeping a circle creates a torus.
There are a number of control parameters for this filter. You can control whether the sweep of a 2D object (i.e., polygon or triangle strip) is capped with the generating geometry via the "Capping" instance variable. Also, you can control the angle of rotation, and whether translation along the z-axis is performed along with the rotation. (Translation is useful for creating "springs".) You also can adjust the radius of the generating geometry using the "DeltaRotation" instance variable.
The skirt is generated by locating certain topological features. Free edges (edges of polygons or triangle strips only used by one polygon or triangle strips) generate surfaces. This is true also of lines or polylines. Vertices generate lines.
This filter can be used to model axisymmetric objects like cylinders, bottles, and wine glasses; or translational/rotational symmetric objects like springs or corkscrews.
- Warning:
- If the object sweeps 360 degrees, radius does not vary, and the object does not translate, capping is not performed. This is because the cap is unnecessary.
Some polygonal objects have no free edges (e.g., sphere). When swept, this will result in two separate surfaces if capping is on, or no surface if capping is off.
- See also:
- vtkLinearExtrusionFilter
- Examples:
- vtkRotationalExtrusionFilter (Examples)
- Tests:
- vtkRotationalExtrusionFilter (Tests)
Definition at line 68 of file vtkRotationalExtrusionFilter.h.
Member Typedef Documentation
Constructor & Destructor Documentation
| vtkRotationalExtrusionFilter::vtkRotationalExtrusionFilter |
( |
|
) |
[protected] |
|
| vtkRotationalExtrusionFilter::~vtkRotationalExtrusionFilter |
( |
|
) |
[inline, protected] |
|
Member Function Documentation
| virtual const char* vtkRotationalExtrusionFilter::GetClassName |
( |
|
) |
[virtual] |
|
| static int vtkRotationalExtrusionFilter::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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataAlgorithm. |
| virtual int vtkRotationalExtrusionFilter::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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataAlgorithm. |
| void vtkRotationalExtrusionFilter::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 vtkPolyDataAlgorithm. |
|
|
Create object with capping on, angle of 360 degrees, resolution = 12, and no translation along z-axis. vector (0,0,1), and point (0,0,0).
Reimplemented from vtkPolyDataAlgorithm. |
| virtual void vtkRotationalExtrusionFilter::SetResolution |
( |
int |
|
) |
[virtual] |
|
|
|
Set/Get resolution of sweep operation. Resolution controls the number of intermediate node points. |
| virtual int vtkRotationalExtrusionFilter::GetResolution |
( |
|
) |
[virtual] |
|
|
|
Set/Get resolution of sweep operation. Resolution controls the number of intermediate node points. |
| virtual void vtkRotationalExtrusionFilter::SetCapping |
( |
int |
|
) |
[virtual] |
|
|
|
Turn on/off the capping of the skirt. |
| virtual int vtkRotationalExtrusionFilter::GetCapping |
( |
|
) |
[virtual] |
|
|
|
Turn on/off the capping of the skirt. |
| virtual void vtkRotationalExtrusionFilter::CappingOn |
( |
|
) |
[virtual] |
|
|
|
Turn on/off the capping of the skirt. |
| virtual void vtkRotationalExtrusionFilter::CappingOff |
( |
|
) |
[virtual] |
|
|
|
Turn on/off the capping of the skirt. |
| virtual void vtkRotationalExtrusionFilter::SetAngle |
( |
double |
|
) |
[virtual] |
|
|
|
Set/Get angle of rotation. |
| virtual double vtkRotationalExtrusionFilter::GetAngle |
( |
|
) |
[virtual] |
|
|
|
Set/Get angle of rotation. |
| virtual void vtkRotationalExtrusionFilter::SetTranslation |
( |
double |
|
) |
[virtual] |
|
|
|
Set/Get total amount of translation along the z-axis. |
| virtual double vtkRotationalExtrusionFilter::GetTranslation |
( |
|
) |
[virtual] |
|
|
|
Set/Get total amount of translation along the z-axis. |
| virtual void vtkRotationalExtrusionFilter::SetDeltaRadius |
( |
double |
|
) |
[virtual] |
|
|
|
Set/Get change in radius during sweep process. |
| virtual double vtkRotationalExtrusionFilter::GetDeltaRadius |
( |
|
) |
[virtual] |
|
|
|
Set/Get change in radius during sweep process. |
|
|
This is called by the superclass. This is the method you should override.
Reimplemented from vtkPolyDataAlgorithm. |
Member Data Documentation
The documentation for this class was generated from the following file:
Generated on Tue Jan 22 00:14:51 2008 for VTK by
1.4.3-20050530