MetricQ (RobWork Java API Documentation)

java.lang.Object
- org.robwork.sdurw.MetricQ

```
public class MetricQ
extends java.lang.Object
```
Template interface for metrics on type T.

A metric is a function that defines a scalar distance between elements.

Constructor Summary

Constructors
Constructor Description

MetricQ(long cPtr, boolean cMemoryOwn)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`delete()`
`double`	`distance(Q q)`	The distance from the zero element to q
`double`	`distance(Q a, Q b)`	The distance from element a to b.
`static long`	`getCPtr(MetricQ obj)`
`int`	`size()`	The dimension of elements on which this metric operates. The returns -1 if the elements don't have a measure of dimension or if the metric works for elements of all dimensions.

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

- Constructor Detail
  - MetricQ
```
public MetricQ(long cPtr,
               boolean cMemoryOwn)
```
- Method Detail
  - getCPtr
```
public static long getCPtr(MetricQ obj)
```
  - delete
```
public void delete()
```
  - distance
```
public double distance(Q q)
```
    The distance from the zero element to q
  - distance
```
public double distance(Q a,
                       Q b)
```
    The distance from element a to b.
    
    Parameters:
    
    a - [in] first element
    
    b - [in] second element
    
    Returns:
    
    the distance
  - size
```
public int size()
```
    The dimension of elements on which this metric operates.
    
    The returns -1 if the elements don't have a measure of dimension or
    if the metric works for elements of all dimensions.