Section: Visualization Toolkit Graphics Classes
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. 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.
To create an instance of class vtkLinearExtrusionFilter, simply invoke its constructor as follows
obj = vtkLinearExtrusionFilter
obj
is an instance of the vtkLinearExtrusionFilter class.
string = obj.GetClassName ()
int = obj.IsA (string name)
vtkLinearExtrusionFilter = obj.NewInstance ()
vtkLinearExtrusionFilter = obj.SafeDownCast (vtkObject o)
obj.SetExtrusionType (int )
- Set/Get the type of extrusion.
int = obj.GetExtrusionTypeMinValue ()
- Set/Get the type of extrusion.
int = obj.GetExtrusionTypeMaxValue ()
- Set/Get the type of extrusion.
int = obj.GetExtrusionType ()
- Set/Get the type of extrusion.
obj.SetExtrusionTypeToVectorExtrusion ()
- Set/Get the type of extrusion.
obj.SetExtrusionTypeToNormalExtrusion ()
- Set/Get the type of extrusion.
obj.SetExtrusionTypeToPointExtrusion ()
- Set/Get the type of extrusion.
obj.SetCapping (int )
- Turn on/off the capping of the skirt.
int = obj.GetCapping ()
- Turn on/off the capping of the skirt.
obj.CappingOn ()
- Turn on/off the capping of the skirt.
obj.CappingOff ()
- Turn on/off the capping of the skirt.
obj.SetScaleFactor (double )
- Set/Get extrusion scale factor,
double = obj.GetScaleFactor ()
- Set/Get extrusion scale factor,
obj.SetVector (double , double , double )
- Set/Get extrusion vector. Only needs to be set if VectorExtrusion is
turned on.
obj.SetVector (double a[3])
- Set/Get extrusion vector. Only needs to be set if VectorExtrusion is
turned on.
double = obj. GetVector ()
- Set/Get extrusion vector. Only needs to be set if VectorExtrusion is
turned on.
obj.SetExtrusionPoint (double , double , double )
- Set/Get extrusion point. Only needs to be set if PointExtrusion is
turned on. This is the point towards which extrusion occurs.
obj.SetExtrusionPoint (double a[3])
- Set/Get extrusion point. Only needs to be set if PointExtrusion is
turned on. This is the point towards which extrusion occurs.
double = obj. GetExtrusionPoint ()
- Set/Get extrusion point. Only needs to be set if PointExtrusion is
turned on. This is the point towards which extrusion occurs.