#include <vtkVectorTopology.h>
Inheritance diagram for vtkVectorTopology:
Public Methods | |
virtual const char * | GetClassName () |
virtual int | IsA (const char *type) |
void | PrintSelf (ostream &os, vtkIndent indent) |
virtual void | SetDistance (float) |
virtual float | GetDistance () |
Static Public Methods | |
vtkVectorTopology * | New () |
int | IsTypeOf (const char *type) |
vtkVectorTopology * | SafeDownCast (vtkObject *o) |
Protected Methods | |
vtkVectorTopology () | |
~vtkVectorTopology () | |
vtkVectorTopology (const vtkVectorTopology &) | |
void | operator= (const vtkVectorTopology &) |
void | Execute () |
Protected Attributes | |
float | Distance |
vtkVectorTopology is a filter that marks points where the vector field vanishes. At these points various important flow features are found, including regions of circulation, separation, etc. The region around these areas are good places to start streamlines. (The vector field vanishes in cells where the x-y-z vector components each pass through zero.)
The output of this filter is a set of vertices. These vertices mark the vector field singularities. You can use an object like vtkGlyph3D to place markers at these points, or use the vertices to initiate streamlines.
The Distance instance variable controls the accuracy of placement of the vertices. Smaller values result in greater execution times.
The input to this filter is any dataset type. The position of the vertices is found by sampling the cell in parametric space. Sampling is repeated until the Distance criterion is satisfied.
|
Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkDataSetToPolyDataFilter. |
|
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 vtkDataSetToPolyDataFilter. |
|
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 vtkDataSetToPolyDataFilter. |
|
Construct object with distance 0.1. Reimplemented from vtkPolyDataSource. |
|
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. |
|
Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkDataSetToPolyDataFilter. |
|
Specify distance from singularity to generate point. |