KmgDoublePolygon (JXN apidocs)

java.lang.Object
- KmgDoublePolygon

public class KmgDoublePolygon
extends Object

Stores the points ( x_i, y_i ) of a polygon.

Field Summary

Fields
Modifier and Type Field Description

int elementCount
Number of valid points in this polygon.

double[] xData
Internal storage.

double[] yData
Internal storage.

Constructor Summary

Constructors
Constructor	Description
`KmgDoublePolygon()`	Creates an empty polygon.
`KmgDoublePolygon(double[] xArray, double[] yArray)`	Creates a polygon from two double arrays.
`KmgDoublePolygon(int initialCapacity)`	Creates an empty polygon (with given initial capacity).

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`KmgDoublePolygon`	`add(double x, double y)`	Adds a point ( x, y ) to this polygon.
`int`	`capacity()`	Returns the current capacity.
`void`	`clear()`	Removes all points.
`int`	`size()`	Returns the number of points of the polygon.

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

- Field Detail
  - elementCount
```
public int elementCount
```
    Number of valid points in this polygon.
  - xData
```
public double[] xData
```
    Internal storage.
  - yData
```
public double[] yData
```
    Internal storage.
- Constructor Detail
  - KmgDoublePolygon
```
public KmgDoublePolygon()
```
    Creates an empty polygon.
  - KmgDoublePolygon
```
public KmgDoublePolygon(int initialCapacity)
```
    Creates an empty polygon (with given initial capacity).
  - KmgDoublePolygon
```
public KmgDoublePolygon(double[] xArray,
                        double[] yArray)
```
    Creates a polygon from two double arrays. Silently ignores surplus elements of the longer array if both arrays do not have equal length.
- Method Detail
  - add
```
public KmgDoublePolygon add(double x,
                            double y)
```
    Adds a point ( x, y ) to this polygon. The capacity of the internal storage is increased dynamically if needed.
  - size
```
public int size()
```
    Returns the number of points of the polygon.
  - capacity
```
public int capacity()
```
    Returns the current capacity.
  - clear
```
public void clear()
```
    Removes all points.