java.lang.Object
- WildMagic.LibFoundation.Curves.BSplineBasisf
- - WildMagic.LibFoundation.Curves.BSplineBasisDiscretef

All Implemented Interfaces:

java.io.Serializable
```
public class BSplineBasisDiscretef
extends BSplineBasisf
implements java.io.Serializable
```
This class is an implementation of an open uniform B-Spline with equally spaced samples taken over the input [0,1] interval. The basis function evaluations are pre-computed at each sample and for each control point so that getting the position for an input value is simply a table lookup and does not involve any calculations.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected float[][]`	`m_aafSampleD0`	Position
`protected float[][]`	`m_aafSampleD1`	First derivative
`protected float[][]`	`m_aafSampleD2`	Second derivative
`protected int[]`	`m_aiControlPointSampleIndexMax`	sample max
`protected int[]`	`m_aiControlPointSampleIndexMin`	sample min
`protected int`	`m_iNumSamples`	num samples
`private static long`	`serialVersionUID`

Fields inherited from class WildMagic.LibFoundation.Curves.BSplineBasisf
m_aafBD0, m_aafBD1, m_aafBD2, m_aafBD3, m_afKnot, m_bOpen, m_bUniform, m_iDegree, m_iNumCtrlPoints, m_iNumKnots

Constructor Summary

Constructors
Constructor	Description
`BSplineBasisDiscretef(int iNumCtrlPoints, int iDegree, int iNumSamples)`	Create a set of B-Spline uniform open basis functions for the given number of control points and degree of the basis functions.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`finalize()`	Cleanup memory.
`int`	`GetControlPointSampleIndexMax(int iControl)`	Return the maximum index of the range of samples affected by the specified control point.
`int`	`GetControlPointSampleIndexMin(int iControl)`	Return the minimum index of the range of samples affected by the specified control point.
`float`	`GetD0(int iControl, int iSample)`	Return the position basis function evaluation which determines how much the specified control point affects the specified sample.
`float`	`GetD1(int iControl, int iSample)`	Return the first derivative basis function evaluation which determines how much the specified control point affects the specified sample.
`float`	`GetD2(int iControl, int iSample)`	Return the second derivative basis function evaluation which determines how much the specified control point affects the specified sample.
`int`	`GetNumSamples()`	Return the number of samples specified in the constructor.

Methods inherited from class WildMagic.LibFoundation.Curves.BSplineBasisf
Compute, Compute, Create, Create, dispose, GetD0, GetD1, GetD2, GetD3, GetDegree, GetKey, GetKnot, GetKnotIndex, GetMinNumControlPoints, GetNumCtrlPoints, IsOpen, IsSameAs, IsUniform, SetKnot

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - m_aafSampleD0
```
protected float[][] m_aafSampleD0
```
    Position
  - m_aafSampleD1
```
protected float[][] m_aafSampleD1
```
    First derivative
  - m_aafSampleD2
```
protected float[][] m_aafSampleD2
```
    Second derivative
  - m_aiControlPointSampleIndexMax
```
protected int[] m_aiControlPointSampleIndexMax
```
    sample max
  - m_aiControlPointSampleIndexMin
```
protected int[] m_aiControlPointSampleIndexMin
```
    sample min
  - m_iNumSamples
```
protected int m_iNumSamples
```
    num samples
- Constructor Detail
  - BSplineBasisDiscretef
```
public BSplineBasisDiscretef(int iNumCtrlPoints,
                             int iDegree,
                             int iNumSamples)
```
    Create a set of B-Spline uniform open basis functions for the given number of control points and degree of the basis functions. These basis functions have been sampled equally over the [0,1] input interval.
    
    Parameters:
    
    iNumCtrlPoints - Number of control points.
    
    iDegree - B-Spline degree of basis functions.
    
    iNumSamples - Number of equally spaced samples.
    
    Throws:
    
    java.lang.IllegalArgumentException - if iNumSamples > iNumCtrlPoints
- Method Detail
  - finalize
```
public void finalize()
              throws java.lang.Throwable
```
    Cleanup memory.
    
    Overrides:
    
    finalize in class java.lang.Object
    
    Throws:
    
    java.lang.Throwable - DOCUMENT ME!
  - GetControlPointSampleIndexMax
```
public int GetControlPointSampleIndexMax(int iControl)
```
    Return the maximum index of the range of samples affected by the specified control point.
    
    Parameters:
    
    iControl - Index of a specified control point.
    
    Returns:
    
    Maximum index of affected sample range.
  - GetControlPointSampleIndexMin
```
public int GetControlPointSampleIndexMin(int iControl)
```
    Return the minimum index of the range of samples affected by the specified control point.
    
    Parameters:
    
    iControl - Index of a specified control point.
    
    Returns:
    
    Minimum index of affected sample range.
  - GetD0
```
public float GetD0(int iControl,
                   int iSample)
```
    Return the position basis function evaluation which determines how much the specified control point affects the specified sample.
    
    Parameters:
    
    iControl - Index of a specified control point.
    
    iSample - Index of a specified sample.
    
    Returns:
    
    Associated position basis function evaluation.
  - GetD1
```
public float GetD1(int iControl,
                   int iSample)
```
    Return the first derivative basis function evaluation which determines how much the specified control point affects the specified sample.
    
    Parameters:
    
    iControl - Index of a specified control point.
    
    iSample - Index of a specified sample.
    
    Returns:
    
    float Associated first derivative basis function evaluation.
  - GetD2
```
public float GetD2(int iControl,
                   int iSample)
```
    Return the second derivative basis function evaluation which determines how much the specified control point affects the specified sample.
    
    Parameters:
    
    iControl - Index of a specified control point.
    
    iSample - Index of a specified sample.
    
    Returns:
    
    float Associated second derivative basis function evaluation.
  - GetNumSamples
```
public int GetNumSamples()
```
    Return the number of samples specified in the constructor.
    
    Returns:
    
    Number of samples.

Class BSplineBasisDiscretef

Field Summary

Fields inherited from class WildMagic.LibFoundation.Curves.BSplineBasisf

Constructor Summary

Method Summary

Methods inherited from class WildMagic.LibFoundation.Curves.BSplineBasisf

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

m_aafSampleD0

m_aafSampleD1

m_aafSampleD2

m_aiControlPointSampleIndexMax

m_aiControlPointSampleIndexMin

m_iNumSamples

Constructor Detail

BSplineBasisDiscretef

Method Detail

finalize

GetControlPointSampleIndexMax

GetControlPointSampleIndexMin

GetD0

GetD1

GetD2

GetNumSamples