Quadric (SciJava Ops Image 1.0.0 API)

java.lang.Object
- org.scijava.ops.image.stats.regression.leastSquares.Quadric

All Implemented Interfaces:

Function<Collection<Vector3d>,Matrix4d>
```
public class Quadric
extends Object
implements Function<Collection<Vector3d>,Matrix4d>
```
An op that fits a quadratic surface (quadric) into a set of points.
The op first solves the quadric that best fits the point cloud by minimising the distance by least squares fitting. It's found by solving a polynomial - the general equation of a quadric. There are no guarantees about the type of the quadric solved, and it can be real or imaginary. The method is sensitive to outlier points.

The op is based on the the implementations of Yury Petrov & KalebKE.

Author:

Richard Domander (Royal Veterinary College, London)

Implementation Note:

op names='stats.leastSquares'

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static int MIN_DATA
  Minimum number of points in the input collection needed to fit a quadric equation.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  Quadric()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  Matrix4d apply(Collection<Vector3d> points)
  TODO
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  - Methods inherited from interface java.util.function.Function
    andThen, compose

- Field Detail
  - MIN_DATA
```
public static final int MIN_DATA
```
    Minimum number of points in the input collection needed to fit a quadric equation.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Quadric
```
public Quadric()
```
- Method Detail
  - apply
```
public Matrix4d apply(Collection<Vector3d> points)
```
    TODO
    
    Specified by:
    
    apply in interface Function<Collection<Vector3d>,Matrix4d>
    
    Parameters:
    
    points -
    
    Returns:
    
    the outputMatrix