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generate isoline(s) from structured points set More...
#include <vtkMarchingSquares.h>
Inherits vtkPolyDataAlgorithm.
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typedef vtkPolyDataAlgorithm | Superclass |
Public Member Functions | |
virtual int | IsA (const char *type) |
vtkMarchingSquares * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
unsigned long int | GetMTime () |
void | SetLocator (vtkIncrementalPointLocator *locator) |
virtual vtkIncrementalPointLocator * | GetLocator () |
void | CreateDefaultLocator () |
virtual void | SetImageRange (int data[]) |
virtual int * | GetImageRange () |
virtual void | GetImageRange (int data[6]) |
void | SetImageRange (int imin, int imax, int jmin, int jmax, int kmin, int kmax) |
void | SetValue (int i, double value) |
double | GetValue (int i) |
double * | GetValues () |
void | GetValues (double *contourValues) |
void | SetNumberOfContours (int number) |
int | GetNumberOfContours () |
void | GenerateValues (int numContours, double range[2]) |
void | GenerateValues (int numContours, double rangeStart, double rangeEnd) |
Static Public Member Functions | |
static vtkMarchingSquares * | New () |
static int | IsTypeOf (const char *type) |
static vtkMarchingSquares * | SafeDownCast (vtkObjectBase *o) |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkMarchingSquares () | |
~vtkMarchingSquares () | |
virtual int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
virtual int | FillInputPortInformation (int port, vtkInformation *info) |
Protected Attributes | |
vtkContourValues * | ContourValues |
int | ImageRange [6] |
vtkIncrementalPointLocator * | Locator |
generate isoline(s) from structured points set
vtkMarchingSquares is a filter that takes as input a structured points set and generates on output one or more isolines. One or more contour values must be specified to generate the isolines. Alternatively, you can specify a min/max scalar range and the number of contours to generate a series of evenly spaced contour values.
To generate contour lines the input data must be of topological dimension 2 (i.e., an image). If not, you can use the ImageRange ivar to select an image plane from an input volume. This avoids having to extract a plane first (using vtkExtractSubVolume). The filter deals with this by first trying to use the input data directly, and if not a 2D image, then uses the ImageRange ivar to reduce it to an image.
Definition at line 52 of file vtkMarchingSquares.h.
typedef vtkPolyDataAlgorithm vtkMarchingSquares::Superclass |
Definition at line 56 of file vtkMarchingSquares.h.
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vtkMarchingSquares* vtkMarchingSquares::NewInstance | ( | ) | const |
void vtkMarchingSquares::PrintSelf | ( | ostream & | os, |
vtkIndent | indent | ||
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Set/Get the i-j-k index range which define a plane on which to generate contour lines. Using this ivar it is possible to input a 3D volume directly and then generate contour lines on one of the i-j-k planes, or a portion of a plane.
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Set/Get the i-j-k index range which define a plane on which to generate contour lines. Using this ivar it is possible to input a 3D volume directly and then generate contour lines on one of the i-j-k planes, or a portion of a plane.
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Set/Get the i-j-k index range which define a plane on which to generate contour lines. Using this ivar it is possible to input a 3D volume directly and then generate contour lines on one of the i-j-k planes, or a portion of a plane.
void vtkMarchingSquares::SetImageRange | ( | int | imin, |
int | imax, | ||
int | jmin, | ||
int | jmax, | ||
int | kmin, | ||
int | kmax | ||
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Set/Get the i-j-k index range which define a plane on which to generate contour lines. Using this ivar it is possible to input a 3D volume directly and then generate contour lines on one of the i-j-k planes, or a portion of a plane.
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Methods to set contour values
Set a particular contour value at contour number i. The index i ranges between 0<=i<NumberOfContours.
Definition at line 111 of file vtkMarchingSquares.h.
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Get the ith contour value.
Definition at line 117 of file vtkMarchingSquares.h.
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Get a pointer to an array of contour values. There will be GetNumberOfContours() values in the list.
Definition at line 124 of file vtkMarchingSquares.h.
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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.
Definition at line 132 of file vtkMarchingSquares.h.
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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.
Definition at line 140 of file vtkMarchingSquares.h.
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Get the number of contours in the list of contour values.
Definition at line 146 of file vtkMarchingSquares.h.
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Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values.
Definition at line 153 of file vtkMarchingSquares.h.
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Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values.
Definition at line 160 of file vtkMarchingSquares.h.
unsigned long int vtkMarchingSquares::GetMTime | ( | ) |
Because we delegate to vtkContourValues
void vtkMarchingSquares::SetLocator | ( | vtkIncrementalPointLocator * | locator | ) |
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void vtkMarchingSquares::CreateDefaultLocator | ( | ) |
Create default locator. Used to create one when none is specified. The locator is used to merge coincident points.
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Definition at line 99 of file vtkMarchingSquares.h.
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Definition at line 100 of file vtkMarchingSquares.h.
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Definition at line 101 of file vtkMarchingSquares.h.