Curve (Simple Features 2.2.2 API)

java.lang.Object
- mil.nga.sf.Geometry
- - mil.nga.sf.Curve

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

CompoundCurve, LineString
```
public abstract class Curve
extends Geometry
```
The base type for all 1-dimensional geometry types. A 1-dimensional geometry is a geometry that has a length, but no area. A curve is considered simple if it does not intersect itself (except at the start and end point). A curve is considered closed its start and end point are coincident. A simple, closed curve is called a ring.

Author:

osbornb

See Also:

Serialized Form

Constructor Summary

Constructors
Modifier Constructor Description

protected Curve(GeometryType type, boolean hasZ, boolean hasM)
Constructor

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract Point`	`endPoint()`	Get the end Point of this Curve
`boolean`	`isClosed()`	Determine if this Curve is closed (start point = end point)
`boolean`	`isRing()`	Determine if this Curve is a ring (closed and simple)
`abstract Point`	`startPoint()`	Get the start Point of this Curve

Methods inherited from class mil.nga.sf.Geometry
copy, equals, expandEnvelope, getCentroid, getDegreesCentroid, getDimension, getEnvelope, getGeometryType, hashCode, hasM, hasZ, is3D, isEmpty, isMeasured, isSimple, setHasM, setHasZ, updateZM

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

- Constructor Detail
  - Curve
```
protected Curve(GeometryType type,
                boolean hasZ,
                boolean hasM)
```
    Constructor
    
    Parameters:
    
    type - geometry type
    
    hasZ - has z
    
    hasM - has m
- Method Detail
  - startPoint
```
public abstract Point startPoint()
```
    Get the start Point of this Curve
    
    Returns:
    
    start point
  - endPoint
```
public abstract Point endPoint()
```
    Get the end Point of this Curve
    
    Returns:
    
    end point
  - isClosed
```
public boolean isClosed()
```
    Determine if this Curve is closed (start point = end point)
    
    Returns:
    
    true if closed
  - isRing
```
public boolean isRing()
```
    Determine if this Curve is a ring (closed and simple)
    
    Returns:
    
    true if a ring