---

vtkVoxelContoursToSurfaceFilter Class Reference

create surface from contours. More...

#include <vtkVoxelContoursToSurfaceFilter.h>

Inheritance diagram for vtkVoxelContoursToSurfaceFilter:

[legend]Collaboration diagram for vtkVoxelContoursToSurfaceFilter:

[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	SetSpacing (float, float, float)
virtual void	SetSpacing (float[3])
virtual float *	GetSpacing ()
virtual void	GetSpacing (float data[3])
virtual void	SetMemoryLimitInBytes (int)
virtual int	GetMemoryLimitInBytes ()
Static Public Methods
vtkVoxelContoursToSurfaceFilter *	New ()
int	IsTypeOf (const char *type)
vtkVoxelContoursToSurfaceFilter *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkVoxelContoursToSurfaceFilter ()
	~vtkVoxelContoursToSurfaceFilter ()
void	Execute ()
void	AddLineToLineList (float x1, float y1, float x2, float y2)
void	SortLineList ()
void	CastLines (float *slice, float gridOrigin[3], int gridSize[3], int type)
void	PushDistances (float *ptr, int gridSize[3], int chunkSize)
Protected Attributes
int	MemoryLimitInBytes
float	Spacing [3]
float *	LineList
int	LineListLength
int	LineListSize
float *	SortedXList
float *	SortedYList
int	SortedListSize
int *	WorkingList
int	WorkingListLength
float *	IntersectionList
int	IntersectionListLength

---

Detailed Description

create surface from contours.

Date:

2001/11/13 14:13:50

Revision:

1.16

vtkVoxelContoursToSurfaceFilter is a filter that takes contours and produces surfaces. There are some restrictions for the contours:

• The contours are input as vtkPolyData, with the contours being polys in the vtkPolyData.
• The contours lie on XY planes - each contour has a constant Z
• The contours are ordered in the polys of the vtkPolyData such that all contours on the first (lowest) XY plane are first, then continuing in order of increasing Z value.
• The X, Y and Z coordinates are all integer values.
• The desired sampling of the contour data is 1x1x1 - Aspect can be used to control the aspect ratio in the output polygonal dataset.

This filter takes the contours and produces a structured points dataset of signed floating point number indicating distance from a contour. A contouring filter is then applied to generate 3D surfaces from a stack of 2D contour distance slices. This is done in a streaming fashion so as not to use to much memory.

See also:

vtkPolyDataToPolyDataFilter

Tests:

vtkVoxelContoursToSurfaceFilter (Tests)

Definition at line 78 of file vtkVoxelContoursToSurfaceFilter.h.

---

Constructor & Destructor Documentation

vtkVoxelContoursToSurfaceFilter::vtkVoxelContoursToSurfaceFilter (    )  [protected]

vtkVoxelContoursToSurfaceFilter::~vtkVoxelContoursToSurfaceFilter (    )  [protected]

---

Member Function Documentation

vtkVoxelContoursToSurfaceFilter* vtkVoxelContoursToSurfaceFilter::New (    )  [static]

Instantiate object with no start, end, or progress methods. Reimplemented from vtkPolyDataSource.

virtual const char* vtkVoxelContoursToSurfaceFilter::GetClassName (    )  [virtual]

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 vtkPolyDataToPolyDataFilter.

int vtkVoxelContoursToSurfaceFilter::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 vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataToPolyDataFilter.

virtual int vtkVoxelContoursToSurfaceFilter::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 vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkPolyDataToPolyDataFilter.

vtkVoxelContoursToSurfaceFilter* vtkVoxelContoursToSurfaceFilter::SafeDownCast (  vtkObject *    o )  [static]

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 vtkPolyDataToPolyDataFilter.

void vtkVoxelContoursToSurfaceFilter::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 vtkSource.

virtual void vtkVoxelContoursToSurfaceFilter::SetMemoryLimitInBytes (  int    )  [virtual]

Set / Get the memory limit in bytes for this filter. This is the limit of the size of the structured points data set that is created for intermediate processing. The data will be streamed through this volume in as many pieces as necessary.

virtual int vtkVoxelContoursToSurfaceFilter::GetMemoryLimitInBytes (    )  [virtual]

Set / Get the memory limit in bytes for this filter. This is the limit of the size of the structured points data set that is created for intermediate processing. The data will be streamed through this volume in as many pieces as necessary.

virtual void vtkVoxelContoursToSurfaceFilter::SetSpacing (  float   , float   , float    )  [virtual]

virtual void vtkVoxelContoursToSurfaceFilter::SetSpacing (  float   [3] )  [virtual]

virtual float* vtkVoxelContoursToSurfaceFilter::GetSpacing (    )  [virtual]

virtual void vtkVoxelContoursToSurfaceFilter::GetSpacing (  float    data[3] )  [virtual]

void vtkVoxelContoursToSurfaceFilter::Execute (    )  [protected, virtual]

This method is the old style execute method Reimplemented from vtkSource.

void vtkVoxelContoursToSurfaceFilter::AddLineToLineList (  float    x1, float    y1, float    x2, float    y2 )  [protected]

void vtkVoxelContoursToSurfaceFilter::SortLineList (    )  [protected]

void vtkVoxelContoursToSurfaceFilter::CastLines (  float *    slice, float    gridOrigin[3], int    gridSize[3], int    type )  [protected]

void vtkVoxelContoursToSurfaceFilter::PushDistances (  float *    ptr, int    gridSize[3], int    chunkSize )  [protected]

---

Member Data Documentation

int vtkVoxelContoursToSurfaceFilter::MemoryLimitInBytes [protected]

Definition at line 103 of file vtkVoxelContoursToSurfaceFilter.h.

float vtkVoxelContoursToSurfaceFilter::Spacing[3] [protected]

Definition at line 105 of file vtkVoxelContoursToSurfaceFilter.h.

float* vtkVoxelContoursToSurfaceFilter::LineList [protected]

Definition at line 107 of file vtkVoxelContoursToSurfaceFilter.h.

int vtkVoxelContoursToSurfaceFilter::LineListLength [protected]

Definition at line 108 of file vtkVoxelContoursToSurfaceFilter.h.

int vtkVoxelContoursToSurfaceFilter::LineListSize [protected]

Definition at line 109 of file vtkVoxelContoursToSurfaceFilter.h.

float* vtkVoxelContoursToSurfaceFilter::SortedXList [protected]

Definition at line 111 of file vtkVoxelContoursToSurfaceFilter.h.

float* vtkVoxelContoursToSurfaceFilter::SortedYList [protected]

Definition at line 112 of file vtkVoxelContoursToSurfaceFilter.h.

int vtkVoxelContoursToSurfaceFilter::SortedListSize [protected]

Definition at line 113 of file vtkVoxelContoursToSurfaceFilter.h.

int* vtkVoxelContoursToSurfaceFilter::WorkingList [protected]

Definition at line 115 of file vtkVoxelContoursToSurfaceFilter.h.

int vtkVoxelContoursToSurfaceFilter::WorkingListLength [protected]

Definition at line 116 of file vtkVoxelContoursToSurfaceFilter.h.

float* vtkVoxelContoursToSurfaceFilter::IntersectionList [protected]

Definition at line 118 of file vtkVoxelContoursToSurfaceFilter.h.

int vtkVoxelContoursToSurfaceFilter::IntersectionListLength [protected]

Definition at line 119 of file vtkVoxelContoursToSurfaceFilter.h.

---

The documentation for this class was generated from the following file:

• Graphics/vtkVoxelContoursToSurfaceFilter.h

---