stella.command

Class DitherAuxiliary

java.lang.Object

java.util.EventObject

util.rmi.RmiEvent

stella.MessageEvent

stella.CommandEvent

stella.command.DitherAuxiliary

All Implemented Interfaces:

Serializable, AuxiliaryCommand

Direct Known Subclasses:

PitchAuxiliary, RandomDitherAuxiliary, SequenceDitherAuxiliary

public class DitherAuxiliary
extends CommandEvent
implements AuxiliaryCommand

The basic command to allow center points to vary short distances from the movement point of the telescope. It is characterized by an offset measured in right ascension and declination rather than an alt/az offset. It is only available for offset-guiding/acquiring units like the AuxiliaryMaster .

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class stella.CommandEvent

CommandEvent.Create

Field Summary

Fields

Modifier and Type	Field and Description
private double	deoffset The offset in de, in degrees.
private double	raoffset The offset in ra, in degrees.
static double	WIFSIPSCALE Default pixel scale on WiFSIP CCD, deg per pixel.

Fields inherited from class stella.CommandEvent

COMMANDPACKAGE, JVIEWPACKAGE, TYPESEPARATOR

Fields inherited from class stella.MessageEvent

SEPCHAR

Fields inherited from class util.rmi.RmiEvent

localHost, sourceName

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
DitherAuxiliary(Object src) Constructs a dither command, grabbing the type from the class name and setting the command time to the current system time.
DitherAuxiliary(Object src, String id, long time) Constructs a new dither telescope command.

Method Summary

Modifier and Type	Method and Description
String[]	getLine() Returns the command line of the dither telescope command.
double	getOffsetDe() Returns the de-offset of the target.
double	getOffsetRa() Returns the ra-offset of the target.
protected static List<Vector2D>	parseDitherList(String scc)
protected static List<Vector2D>	parseDitherList(String scc, double scale) Parses a semicolon-colon bi-list into a list of vector2d symbolizing the dither offset.
protected static Vector2D	parseDitherSingle(String scc) Parses a semicolon-colon bi-list into a list of vector2d symbolizing the dither offset.
protected static Vector2D	parseDitherSingle(String scc, double scale)
boolean	parseLine(String[] all) Parse the command line into ra and dec of the dither command.
void	setOffset(double xoff, double yoff) Sets the degrees offsets in right ascension and declination.

Methods inherited from class stella.CommandEvent

classNameToTemplate, createCommand, createCommand, createJCommand, extractType, getExpectedAcknowledgeNumber, parseForStrings, templateToClassName

Methods inherited from class stella.MessageEvent

checkType, equals, equalTime, equalTime, fromAscii, getAllCommandLines, getExecuteGroupKey, getHead, getNr, getTime, getType, hashCode, isValid, parseFromSingleString, readFromBufferedStream, setNr, setTime, setType, setValid, toSkippedString, toString

Methods inherited from class util.rmi.RmiEvent

getHost, getSourceName, setSourceName

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

WIFSIPSCALE

public static final double WIFSIPSCALE

Default pixel scale on WiFSIP CCD, deg per pixel.

See Also:

Constant Field Values

raoffset

private double raoffset

The offset in ra, in degrees.

deoffset

private double deoffset

The offset in de, in degrees.

Constructor Detail

DitherAuxiliary

public DitherAuxiliary(Object src)

Constructs a dither command, grabbing the type from the class name and setting the command time to the current system time.

DitherAuxiliary

public DitherAuxiliary(Object src,
                       String id,
                       long time)

Constructs a new dither telescope command. The command only gets valid when either its parseLine(java.lang.String[]) or the setOffset(double, double) method are called.
To mark both offsets invalid, NaN is assigned to them.

Method Detail

getLine

public String[] getLine()

Returns the command line of the dither telescope command.

Specified by:

getLine in class MessageEvent

Returns:

An array containing all command lines.

parseLine

public boolean parseLine(String[] all)

Parse the command line into ra and dec of the dither command.

Specified by:

parseLine in class MessageEvent

Returns:

True, if parsing was successful.

setOffset

public void setOffset(double xoff,
                      double yoff)

Sets the degrees offsets in right ascension and declination.

Parameters:

xoff - Offset in right ascension, degrees.

yoff - Offset in declination, degrees.

getOffsetRa

public double getOffsetRa()

Returns the ra-offset of the target. If the command is invalid, NaN is returned.

getOffsetDe

public double getOffsetDe()

Returns the de-offset of the target. If the command is invalid, NaN is returned.

parseDitherList

protected static List<Vector2D> parseDitherList(String scc)

parseDitherList

protected static List<Vector2D> parseDitherList(String scc,
                                                double scale)

Parses a semicolon-colon bi-list into a list of vector2d symbolizing the dither offset.

parseDitherSingle

protected static Vector2D parseDitherSingle(String scc)

Parses a semicolon-colon bi-list into a list of vector2d symbolizing the dither offset.

parseDitherSingle

protected static Vector2D parseDitherSingle(String scc,
                                            double scale)