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Class ncsa.horizon.coordinates.formatters.
NRAOStokesFormatter

java.lang.Object
  |
  +--ncsa.horizon.coordinates.formatters.NRAOStokesFormatter

public class NRAOStokesFormatter

extends java.lang.Object

implements AxisPosFormatter

support for printing out Stokes axis positions by their two-character polarization codes, according to the NRAO Stokes Paramters Convention.

The convention is as follows:

 pixel position:  -7  -6  -5  -4  -3  -2  -1   0   1   2   3   4
 Stokes code:     YX  XY  YY  XX  LR  RL  LL  RR   I   Q   U   V
 

The I, Q, U, and V indicate the standard Stokes optical polarizations. That is, the values a the pixel position The other codes indicate

See Also:

Serialized Form

Field Summary

static java.lang.String	myname
static java.lang.String[]	polcodes the supported polarization codes:

Constructor Summary

NRAOStokesFormatter()

Method Summary

java.lang.Object	clone()
int	getPrecision() This method always returns 0 since the precision cannot be updated
void	setPrecision(int precision) This method does nothing since the precision cannot be updated
java.lang.String	toString(double val) return a value as a string with a specified precision
java.lang.String	toString(double val, int prec) return a value as a string with a specified precision
java.lang.String	toString()
double	valueOf(java.lang.String s) parse the String representation of a floating point number

Methods inherited from class java.lang.Object

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

Field Detail

polcodes

public static final java.lang.String[] polcodes

the supported polarization codes:

myname

protected static final java.lang.String myname

Constructor Detail

NRAOStokesFormatter

public NRAOStokesFormatter()

Method Detail

toString

public java.lang.String toString(double val)

return a value as a string with a specified precision

Specified by:

toString in interface AxisPosFormatter

Parameters:

val - the input value

toString

public java.lang.String toString(double val,
                       int prec)

return a value as a string with a specified precision

Specified by:

toString in interface AxisPosFormatter

Parameters:

val - the input value

prec - the number of places right of the decimal point

valueOf

public double valueOf(java.lang.String s)
              throws java.lang.NumberFormatException

parse the String representation of a floating point number

Specified by:

valueOf in interface AxisPosFormatter

setPrecision

public void setPrecision(int precision)

This method does nothing since the precision cannot be updated

Specified by:

setPrecision in interface AxisPosFormatter

getPrecision

public int getPrecision()

This method always returns 0 since the precision cannot be updated

clone

public java.lang.Object clone()

Description copied from interface:

Specified by:

clone in interface AxisPosFormatter

Overrides:

clone in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object