java.lang.Object
- org.robwork.sdurw_geometry.PolygonPtr

```
public class PolygonPtr
extends java.lang.Object
```
Ptr stores a pointer and optionally takes ownership of the value.

Constructor Summary

Constructors
Constructor	Description
`PolygonPtr()`	Default constructor yielding a NULL-pointer.
`PolygonPtr(long cPtr, boolean cMemoryOwn)`
`PolygonPtr(Polygon ptr)`	Do not take ownership of ptr. ptr can be null. The constructor is implicit on purpose.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Polygon`	`__ref__()`	Dereferencing operator.
`void`	`addVertex(Vector3D p)`	Adds a vertex to the polygon The point will be added to the end of the list of points
`Vector3D`	`computeCenter()`	Computes the center of the polygon as the average of all coordinates
`PolygonCPtr`	`cptr()`
`void`	`delete()`
`Polygon`	`deref()`	The pointer stored in the object.
`boolean`	`equals(Polygon p)`
`Vector3D`	`get(long i)`
`static long`	`getCPtr(PolygonPtr obj)`
`Polygon`	`getDeref()`	Member access operator.
`Vector3D`	`getVertex(long idx)`	returns the index of vertex i of the triangle
`boolean`	`isNull()`	checks if the pointer is null
`boolean`	`isShared()`	check if this Ptr has shared ownership or none ownership
`void`	`removeVertex(long idx)`	Removes vertex from the polygon
`void`	`set(long i, Vector3D d)`
`long`	`size()`	Number of vertices of this polygon

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

- Constructor Detail
  - PolygonPtr
```
public PolygonPtr(long cPtr,
                  boolean cMemoryOwn)
```
  - PolygonPtr
```
public PolygonPtr()
```
    Default constructor yielding a NULL-pointer.
  - PolygonPtr
```
public PolygonPtr(Polygon ptr)
```
    Do not take ownership of ptr.
    
    ptr can be null.
    
    The constructor is implicit on purpose.
- Method Detail
  - getCPtr
```
public static long getCPtr(PolygonPtr obj)
```
  - delete
```
public void delete()
```
  - deref
```
public Polygon deref()
```
    The pointer stored in the object.
  - __ref__
```
public Polygon __ref__()
```
    Dereferencing operator.
  - getDeref
```
public Polygon getDeref()
```
    Member access operator.
  - equals
```
public boolean equals(Polygon p)
```
  - isShared
```
public boolean isShared()
```
    check if this Ptr has shared ownership or none
    ownership
    
    Returns:
    
    true if Ptr has shared ownership, false if it has no ownership.
  - isNull
```
public boolean isNull()
```
    checks if the pointer is null
    
    Returns:
    
    Returns true if the pointer is null
  - cptr
```
public PolygonCPtr cptr()
```
  - addVertex
```
public void addVertex(Vector3D p)
```
    Adds a vertex to the polygon
    
    The point will be added to the end of the list of points
    
    Parameters:
    
    p - [in] The point to add
  - removeVertex
```
public void removeVertex(long idx)
```
    Removes vertex from the polygon
    
    Parameters:
    
    idx - [in] Index of the vertex to remove
  - getVertex
```
public Vector3D getVertex(long idx)
```
    returns the index of vertex i of the triangle
  - get
```
public Vector3D get(long i)
```
  - set
```
public void set(long i,
                Vector3D d)
```
  - size
```
public long size()
```
    Number of vertices of this polygon
    
    Returns:
    
    Number of vertices
  - computeCenter
```
public Vector3D computeCenter()
```
    Computes the center of the polygon as the average of all coordinates
    
    Returns:
    
    Center of the polygon

Class PolygonPtr

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

PolygonPtr

PolygonPtr

PolygonPtr

Method Detail

getCPtr

delete

deref

__ref__

getDeref

equals

isShared

isNull

cptr

addVertex

removeVertex

getVertex

get

set

size

computeCenter

ref