vtkGenericCutter Class Reference
#include <vtkGenericCutter.h>
Inheritance diagram for vtkGenericCutter:
[legend]Collaboration diagram for vtkGenericCutter:
[legend]List of all members.
Detailed Description
cut a vtkGenericDataSet with an implicit function or scalar data
vtkGenericCutter is a filter to cut through data using any subclass of vtkImplicitFunction. That is, a polygonal surface is created corresponding to the implicit function F(x,y,z) = value(s), where you can specify one or more values used to cut with.
In VTK, cutting means reducing a cell of dimension N to a cut surface of dimension N-1. For example, a tetrahedron when cut by a plane (i.e., vtkPlane implicit function) will generate triangles. (In comparison, clipping takes a N dimensional cell and creates N dimension primitives.)
vtkGenericCutter is generally used to "slice-through" a dataset, generating a surface that can be visualized. It is also possible to use vtkGenericCutter to do a form of volume rendering. vtkGenericCutter does this by generating multiple cut surfaces (usually planes) which are ordered (and rendered) from back-to-front. The surfaces are set translucent to give a volumetric rendering effect.
This filter has been implemented to operate on generic datasets, rather than the typical vtkDataSet (and subclasses). vtkGenericDataSet is a more complex cousin of vtkDataSet, typically consisting of nonlinear, higher-order cells. To process this type of data, generic cells are automatically tessellated into linear cells prior to isocontouring.
- See also:
- vtkCutter vtkImplicitFunction vtkClipPolyData vtkGenericDataSet
- Tests:
- vtkGenericCutter (Tests)
Definition at line 60 of file vtkGenericCutter.h.
Member Typedef Documentation
Constructor & Destructor Documentation
| vtkGenericCutter::~vtkGenericCutter |
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Member Function Documentation
| virtual const char* vtkGenericCutter::GetClassName |
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| static int vtkGenericCutter::IsTypeOf |
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const char * |
type |
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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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataAlgorithm. |
| virtual int vtkGenericCutter::IsA |
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const char * |
type |
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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 vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataAlgorithm. |
| void vtkGenericCutter::PrintSelf |
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ostream & |
os, |
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vtkIndent |
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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 vtkPolyDataAlgorithm. |
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Construct with user-specified implicit function; initial value of 0.0; and generating cut scalars turned off.
Reimplemented from vtkPolyDataAlgorithm. |
| void vtkGenericCutter::SetValue |
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int |
i, |
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double |
value |
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Set a particular contour value at contour number i. The index i ranges between 0<=i<NumberOfContours. |
| double vtkGenericCutter::GetValue |
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int |
i |
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Get the ith contour value. |
| double* vtkGenericCutter::GetValues |
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| void vtkGenericCutter::GetValues |
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double * |
contourValues |
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Fill a supplied list with contour values. There will be GetNumberOfContours() values in the list. Make sure you allocate enough memory to hold the list. |
| void vtkGenericCutter::SetNumberOfContours |
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int |
number |
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Set the number of contours to place into the list. You only really need to use this method to reduce list size. The method SetValue() will automatically increase list size as needed. |
| int vtkGenericCutter::GetNumberOfContours |
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Get the number of contours in the list of contour values. |
| void vtkGenericCutter::GenerateValues |
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int |
numContours, |
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double |
range[2] |
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Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values. |
| void vtkGenericCutter::GenerateValues |
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int |
numContours, |
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double |
rangeStart, |
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double |
rangeEnd |
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Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values. |
| unsigned long vtkGenericCutter::GetMTime |
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Specify the implicit function to perform the cutting. |
| virtual void vtkGenericCutter::SetGenerateCutScalars |
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int |
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If this flag is enabled, then the output scalar values will be interpolated from the implicit function values, and not the input scalar data. |
| virtual int vtkGenericCutter::GetGenerateCutScalars |
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If this flag is enabled, then the output scalar values will be interpolated from the implicit function values, and not the input scalar data. |
| virtual void vtkGenericCutter::GenerateCutScalarsOn |
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If this flag is enabled, then the output scalar values will be interpolated from the implicit function values, and not the input scalar data. |
| virtual void vtkGenericCutter::GenerateCutScalarsOff |
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If this flag is enabled, then the output scalar values will be interpolated from the implicit function values, and not the input scalar data. |
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Specify a spatial locator for merging points. By default, an instance of vtkMergePoints is used. |
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Specify a spatial locator for merging points. By default, an instance of vtkMergePoints is used. |
| void vtkGenericCutter::CreateDefaultLocator |
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Create default locator. Used to create one when none is specified. The locator is used to merge coincident points. |
| int vtkGenericCutter::FillInputPortInformation |
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int |
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vtkInformation * |
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Fill the input port information objects for this algorithm. This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.
Reimplemented from vtkPolyDataAlgorithm. |
Member Data Documentation
The documentation for this class was generated from the following file:
Generated on Mon Jan 21 23:45:31 2008 for VTK by
1.4.3-20050530