#include <vtkSpline.h>
Inheritance diagram for vtkSpline:
Public Methods | |
virtual const char * | GetClassName () |
virtual int | IsA (const char *type) |
void | PrintSelf (ostream &os, vtkIndent indent) |
virtual void | SetClampValue (int) |
virtual int | GetClampValue () |
virtual void | ClampValueOn () |
virtual void | ClampValueOff () |
virtual void | Compute ()=0 |
void | AddPoint (float t, float x) |
void | RemovePoint (float t) |
void | RemoveAllPoints () |
virtual void | SetClosed (int) |
virtual int | GetClosed () |
virtual void | ClosedOn () |
virtual void | ClosedOff () |
virtual void | SetLeftConstraint (int) |
virtual int | GetLeftConstraint () |
virtual void | SetRightConstraint (int) |
virtual int | GetRightConstraint () |
virtual void | SetLeftValue (float) |
virtual float | GetLeftValue () |
virtual void | SetRightValue (float) |
virtual float | GetRightValue () |
unsigned long | GetMTime () |
Static Public Methods | |
int | IsTypeOf (const char *type) |
vtkSpline * | SafeDownCast (vtkObject *o) |
Protected Methods | |
vtkSpline () | |
~vtkSpline () | |
vtkSpline (const vtkSpline &) | |
void | operator= (const vtkSpline &) |
Protected Attributes | |
unsigned long | ComputeTime |
int | ClampValue |
float * | Intervals |
float * | Coefficients |
int | LeftConstraint |
float | LeftValue |
int | RightConstraint |
float | RightValue |
vtkPiecewiseFunction * | PiecewiseFunction |
int | Closed |
vtkSpline is used to create interpolated data points for specified data. vtkSpline is an abstract class: its subclasses vtkCardinalSpline and vtkKochenekSpline do the interpolation, The current implementation of splines is limited to data dimensions not exceeding four.
Typically a spline is used by adding a sequence of points followed by use of an evaluation function (e.g., vtkCardinalSpline::Evaluate()). Since these splines are 1D, a point in this context is a independent/ dependent variable pair. Note that the parameter space of the spline ranges from (0,N-1), where N is the number of points in the spline.
Splines can also be set up to be closed or open. Closed splines continue from the last point to the first point with continuous function and derivative values. (You don't need to duplicate the first point to close the spline, just set ClosedOn.) If the spline is closed, the parameter space of the spline becomes (0,N).
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Add a pair of points to be fit with the spline. |
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Compute the coefficients for the spline. Implemented in vtkCardinalSpline. |
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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 vtkObject. Reimplemented in vtkCardinalSpline. |
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Return the MTime also considering the Piecewise function. Reimplemented from vtkObject. |
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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 vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkObject. Reimplemented in vtkCardinalSpline. |
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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 vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkObject. Reimplemented in vtkCardinalSpline. |
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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 vtkObject. Reimplemented in vtkCardinalSpline. |
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Remove all points from the data. |
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Remove a point from the data to be fit with the spline. |
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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 vtkObject. Reimplemented in vtkCardinalSpline. |
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Set/Get ClampValue. If On, results of the interpolation will be clamped to the min/max of the input data. |
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Control whether the spline is open or closed. A closed spline forms a continuous loop: the first and last points are the same, and derivatives are continuous. |
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Set the type of constraint of the left(right) end points. Three constraints are available: 1: the first derivative at left(right)most point is set to Left(Right)Value. 2: the second derivative at left(right)most point is set to Left(Right)Value. 3: the second derivative at left(right)most points is Left(Right)Value times second derivative at first interior point. |