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vtkLinearExtrusionFilter Class Reference
sweep polygonal data creating a "skirt" from free edges and lines, and lines from vertices.
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#include <vtkLinearExtrusionFilter.h>
Inheritance diagram for vtkLinearExtrusionFilter:
[legend]Collaboration diagram for vtkLinearExtrusionFilter:
[legend]List of all members.
Public Methods |
| virtual const char * | GetClassName () |
| virtual int | IsA (const char *type) |
| void | PrintSelf (ostream &os, vtkIndent indent) |
| virtual void | SetExtrusionType (int) |
| virtual int | GetExtrusionType () |
| void | SetExtrusionTypeToVectorExtrusion () |
| void | SetExtrusionTypeToNormalExtrusion () |
| void | SetExtrusionTypeToPointExtrusion () |
| virtual void | SetCapping (int) |
| virtual int | GetCapping () |
| virtual void | CappingOn () |
| virtual void | CappingOff () |
| virtual void | SetLowerCap (int) |
| virtual int | GetLowerCap () |
| virtual void | LowerCapOn () |
| virtual void | LowerCapOff () |
| virtual void | SetUpperCap (int) |
| virtual int | GetUpperCap () |
| virtual void | UpperCapOn () |
| virtual void | UpperCapOff () |
| virtual void | SetScaleFactor (float) |
| virtual float | GetScaleFactor () |
| virtual void | SetVector (float, float, float) |
| virtual void | SetVector (float[3]) |
| virtual float * | GetVector () |
| virtual void | GetVector (float data[3]) |
| virtual void | SetExtrusionPoint (float, float, float) |
| virtual void | SetExtrusionPoint (float[3]) |
| virtual float * | GetExtrusionPoint () |
| virtual void | GetExtrusionPoint (float data[3]) |
Static Public Methods |
| int | IsTypeOf (const char *type) |
| vtkLinearExtrusionFilter * | SafeDownCast (vtkObject *o) |
| vtkLinearExtrusionFilter * | New () |
Protected Methods |
| | vtkLinearExtrusionFilter () |
| | ~vtkLinearExtrusionFilter () |
| | vtkLinearExtrusionFilter (const vtkLinearExtrusionFilter &) |
| void | operator= (const vtkLinearExtrusionFilter &) |
| void | Execute () |
| float * | ViaNormal (float x[3], int id, vtkNormals *normals=NULL) |
| float * | ViaVector (float x[3], int id, vtkNormals *normals=NULL) |
| float * | ViaPoint (float x[3], int id, vtkNormals *normals=NULL) |
Protected Attributes |
| int | ExtrusionType |
| int | Capping |
| int | LowerCap |
| int | UpperCap |
| float | ScaleFactor |
| float | Vector [3] |
| float | ExtrusionPoint [3] |
| float *(vtkLinearExtrusionFilter::* | ExtrudePoint )(float x[3], int id, vtkNormals *normals) |
Detailed Description
sweep polygonal data creating a "skirt" from free edges and lines, and lines from vertices.
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Date:
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2000/12/22 12:32:04
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Revision:
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1.32.2.1
vtkLinearExtrusionFilter is a modeling filter. It takes polygonal data as input and generates polygonal data on output. The input dataset is swept according to some extrusion function and creates new polygonal primitives. These primitives form a "skirt" or swept surface. For example, sweeping a line results in a quadrilateral, and sweeping a triangle creates a "wedge".
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" ivar. (The capping can be further controlled by setting the LowerCap and UpperCap instance variables.) Also, you can extrude in the direction of a user specified vector, towards a point, or in the direction of vertex normals (normals must be provided - use vtkPolyDataNormals if necessary). The amount of extrusion is controlled by the "ScaleFactor" 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 create 3D fonts, 3D irregular bar charts, or to model 2 1/2D objects like punched plates. It also can be used to create solid objects from 2D polygonal meshes.
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Warning:
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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.
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See also:
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vtkRotationalExtrusionFilter
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Examples:
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vtkLinearExtrusionFilter (examples)
Definition at line 90 of file vtkLinearExtrusionFilter.h.
Constructor & Destructor Documentation
| vtkLinearExtrusionFilter::vtkLinearExtrusionFilter |
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[protected] |
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| vtkLinearExtrusionFilter::~vtkLinearExtrusionFilter |
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[inline, protected] |
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| vtkLinearExtrusionFilter::vtkLinearExtrusionFilter |
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const vtkLinearExtrusionFilter & |
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[inline, protected] |
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Member Function Documentation
| virtual const char* vtkLinearExtrusionFilter::GetClassName |
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[virtual] |
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| int vtkLinearExtrusionFilter::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 vtkPolyDataToPolyDataFilter. |
| virtual int vtkLinearExtrusionFilter::IsA |
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const char * |
type |
) |
[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 vtkPolyDataToPolyDataFilter. |
| vtkLinearExtrusionFilter* vtkLinearExtrusionFilter::SafeDownCast |
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vtkObject * |
o |
) |
[static] |
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| void vtkLinearExtrusionFilter::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. |
| vtkLinearExtrusionFilter* vtkLinearExtrusionFilter::New |
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[static] |
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Create object with normal extrusion type, capping on, scale factor=1.0, vector (0,0,1), and extrusion point (0,0,0).
Reimplemented from vtkPolyDataSource. |
| virtual void vtkLinearExtrusionFilter::SetExtrusionType |
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int |
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[virtual] |
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Set/Get the type of extrusion. |
| virtual int vtkLinearExtrusionFilter::GetExtrusionType |
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[virtual] |
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| void vtkLinearExtrusionFilter::SetExtrusionTypeToVectorExtrusion |
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[inline] |
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| void vtkLinearExtrusionFilter::SetExtrusionTypeToNormalExtrusion |
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[inline] |
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| void vtkLinearExtrusionFilter::SetExtrusionTypeToPointExtrusion |
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[inline] |
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| virtual void vtkLinearExtrusionFilter::SetCapping |
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int |
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[virtual] |
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Turn on/off the capping of the skirt. |
| virtual int vtkLinearExtrusionFilter::GetCapping |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::CappingOn |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::CappingOff |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::SetLowerCap |
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int |
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[virtual] |
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Turn on/off the generation of the lower cap. This ivar is effective only if Capping is on. (The lower cap is the original (input) polydata.) |
| virtual int vtkLinearExtrusionFilter::GetLowerCap |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::LowerCapOn |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::LowerCapOff |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::SetUpperCap |
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int |
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[virtual] |
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Turn on/off the generation of the upper cap. This ivar is effective only if Capping is on. (The upper cap is the generated at the end of the extrusion.) |
| virtual int vtkLinearExtrusionFilter::GetUpperCap |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::UpperCapOn |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::UpperCapOff |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::SetScaleFactor |
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float |
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[virtual] |
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Set/Get extrusion scale factor, |
| virtual float vtkLinearExtrusionFilter::GetScaleFactor |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::SetVector |
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float |
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float |
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float |
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[virtual] |
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Set/Get extrusion vector. Only needs to be set if VectorExtrusion is turned on. |
| virtual void vtkLinearExtrusionFilter::SetVector |
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float |
[3] |
) |
[virtual] |
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| virtual float* vtkLinearExtrusionFilter::GetVector |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::GetVector |
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float |
data[3] |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::SetExtrusionPoint |
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float |
, |
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float |
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float |
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[virtual] |
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Set/Get extrusion point. Only needs to be set if PointExtrusion is turned on. This is the point towards which extrusion occurs. |
| virtual void vtkLinearExtrusionFilter::SetExtrusionPoint |
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float |
[3] |
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[virtual] |
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| virtual float* vtkLinearExtrusionFilter::GetExtrusionPoint |
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[virtual] |
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| virtual void vtkLinearExtrusionFilter::GetExtrusionPoint |
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float |
data[3] |
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[virtual] |
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| void vtkLinearExtrusionFilter::operator= |
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const vtkLinearExtrusionFilter & |
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[inline, protected] |
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| void vtkLinearExtrusionFilter::Execute |
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[protected, virtual] |
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| float* vtkLinearExtrusionFilter::ViaNormal |
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float |
x[3], |
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int |
id, |
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vtkNormals * |
normals = NULL |
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) |
[protected] |
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| float* vtkLinearExtrusionFilter::ViaVector |
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float |
x[3], |
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int |
id, |
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vtkNormals * |
normals = NULL |
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) |
[protected] |
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| float* vtkLinearExtrusionFilter::ViaPoint |
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float |
x[3], |
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int |
id, |
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vtkNormals * |
normals = NULL |
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[protected] |
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Member Data Documentation
int vtkLinearExtrusionFilter::ExtrusionType [protected]
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int vtkLinearExtrusionFilter::Capping [protected]
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int vtkLinearExtrusionFilter::LowerCap [protected]
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int vtkLinearExtrusionFilter::UpperCap [protected]
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float vtkLinearExtrusionFilter::ScaleFactor [protected]
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float vtkLinearExtrusionFilter::Vector[3] [protected]
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float vtkLinearExtrusionFilter::ExtrusionPoint[3] [protected]
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float*(vtkLinearExtrusionFilter::* vtkLinearExtrusionFilter::ExtrudePoint)(float x[3], int id, vtkNormals *normals) [protected]
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The documentation for this class was generated from the following file:
Generated on Wed Nov 21 12:52:44 2001 for VTK by
1.2.11.1 written by Dimitri van Heesch,
© 1997-2001