mil.nga.sf

Class Curve

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

Method Summary

Modifier and Type	Method and 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, getCentroid, getDimension, getEnvelope, getGeometryType, hashCode, hasM, hasZ, is3D, isEmpty, isMeasured, isSimple

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