程序包 net.sf.marineapi.provider

类 PositionProvider

java.lang.Object

net.sf.marineapi.provider.AbstractProvider<PositionEvent>

net.sf.marineapi.provider.PositionProvider

所有已实现的接口:

EventListener, SentenceListener

public class PositionProvider
extends AbstractProvider<PositionEvent>

Provides Time, Position and Velocity reports from GPS. Data is captured from RMC, GGA and GLL sentences. RMC is used for date/time, speed and course. GGA is used as primary source for position as it contains also the altitude. When GGA is not available, position may be taken from GLL or RMC. If this is the case, there is no altitude included in the Position. GPS data statuses are also captured and events are dispatched only when sentences report DataStatus.ACTIVE. FAA mode transmitted in RMC is also checked and captured when available, but may be null depending on used NMEA version.

作者:

Kimmo Tuukkanen

另请参阅:

• PositionListener
• PositionEvent
• SentenceReader

字段概要

从类继承的字段 net.sf.marineapi.provider.AbstractProvider

DEFAULT_TIMEOUT

构造器概要

构造器

构造器	说明
PositionProvider(SentenceReader reader)	Creates a new instance of PositionProvider.

方法概要

修饰符和类型	方法	说明
protected PositionEvent	createProviderEvent()	Creates a ProviderEvent of type T.
protected boolean	isReady()	Tells if provider has captured the required sentences for creating new ProviderEvent.
protected boolean	isValid()	Tells if the captured sentence events contain valid data to be dispatched to ProviderListeners.

从类继承的方法 net.sf.marineapi.provider.AbstractProvider

addListener, getSentences, hasAll, hasOne, readingPaused, readingStarted, readingStopped, removeListener, sentenceRead, setTimeout

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

PositionProvider

public PositionProvider(SentenceReader reader)

Creates a new instance of PositionProvider.

参数:

reader - SentenceReader that provides the required sentences.

方法详细资料

createProviderEvent

protected PositionEvent createProviderEvent()

从类复制的说明: AbstractProvider

Creates a ProviderEvent of type T.

指定者:

createProviderEvent 在类中 AbstractProvider<PositionEvent>

返回:

Created event, or null if failed.

isReady

protected boolean isReady()

从类复制的说明: AbstractProvider

Tells if provider has captured the required sentences for creating new ProviderEvent.

指定者:

isReady 在类中 AbstractProvider<PositionEvent>

返回:

true if ready to create ProviderEvent, otherwise false.

isValid

protected boolean isValid()

从类复制的说明: AbstractProvider

Tells if the captured sentence events contain valid data to be dispatched to ProviderListeners.

指定者:

isValid 在类中 AbstractProvider<PositionEvent>

返回:

true if valid, otherwise false.