CrossoverMachine (cdk 2.9 API)

java.lang.Object
- org.openscience.cdk.structgen.stochastic.operator.CrossoverMachine

```
public class CrossoverMachine
extends Object
```
Modified molecular structures by applying crossover operator on a pair of parent structures and generate a pair of offspring structures. Each of the two offspring structures inherits a certain fragments from both of its parents.

Source code:
main

Belongs to CDK module:
structgen

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`SPLIT_MODE_BREADTH_FIRST`	Indicates that `crossover` is using SPLIT_MODE_BREADTH_FIRST mode.
`static int`	`SPLIT_MODE_DEPTH_FIRST`	Indicates that `crossover` is using SPLIT_MODE_DEPTH_FIRST mode.
`static int`	`SPLIT_MODE_RADNDOM`	Indicates that `crossover` is using SPLIT_MODE_RADNDOM mode.

Constructor Summary

Constructors
Constructor Description

CrossoverMachine()
Constructs a new CrossoverMachine operator.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`List<IAtomContainer>`	`doCrossover(IAtomContainer dad, IAtomContainer mom)`	Performs the n point crossover of two `IAtomContainer`.

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

- Field Detail
  - SPLIT_MODE_RADNDOM
```
public static final int SPLIT_MODE_RADNDOM
```
    Indicates that crossover is using SPLIT_MODE_RADNDOM mode.
    
    See Also:
    
    Constant Field Values
  - SPLIT_MODE_DEPTH_FIRST
```
public static final int SPLIT_MODE_DEPTH_FIRST
```
    Indicates that crossover is using SPLIT_MODE_DEPTH_FIRST mode.
    
    See Also:
    
    Constant Field Values
  - SPLIT_MODE_BREADTH_FIRST
```
public static final int SPLIT_MODE_BREADTH_FIRST
```
    Indicates that crossover is using SPLIT_MODE_BREADTH_FIRST mode.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - CrossoverMachine
```
public CrossoverMachine()
```
    Constructs a new CrossoverMachine operator.
- Method Detail
  - doCrossover
```
public List<IAtomContainer> doCrossover(IAtomContainer dad,
                                        IAtomContainer mom)
                                 throws CDKException
```
    Performs the n point crossover of two IAtomContainer. Precondition: The atoms in the molecules are ordered by properties to preserve (e. g. atom symbol). Due to its randomized nature, this method fails in around 3% of all cases. A CDKException with message "Could not mate these properly" will then be thrown.
    
    Returns:
    
    The children.
    
    Throws:
    
    CDKException - if it was not possible to form offsprings.