stella.adapter

Class RectangularMatcher

java.lang.Object

stella.adapter.RectangularMatcher

public class RectangularMatcher
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RectangularMatcher.FileMatch Test class to read image and catalog data from a file and try to match.
static class	RectangularMatcher.LogMatch Reads the found stars as the first line and the catalog as the second line from the auxiliary/adapter log output.
static class	RectangularMatcher.SerializedMatch Test class to read image and catalog data from a file and try to match.
static class	RectangularMatcher.Thorough More ambitious test.

Field Summary

Fields

Modifier and Type	Field and Description
private List<Guiding.RawStar>	catalog Pixel coordinates as deduced from the catalog.
private Point2D[][]	catalogdist Distance of star at first index to star on second, catalog space.
private static double	DEFTOTMAG Per default, we assume that differential magnitudes are more accurate.
private double	delta The expected uncertainity of the catalog positions in pixels.
private double	deltamag The expected uncertainty in differential image magnitudes.
private List<Integer>[]	freq For each star in the image the indices of the catalog matches.
private List<Guiding.RawStar>	image Pixel coordinates of the stars on the image.
private Point2D[][]	imagedist Distance of star at first index to star on second, image space.
private List<Integer>[]	match For each star in the image the indices of the catalog matches.
private double	totmag The expected uncertainty in catalog to image magnitudes in deltamags.

Constructor Summary

Constructors

Constructor and Description
RectangularMatcher(List<Guiding.RawStar> im, List<Guiding.RawStar> cat) Constructs a new rectangluar matcher and calculates all distances.
RectangularMatcher(List<Guiding.RawStar> im, List<Guiding.RawStar> cat, double tt) Constructs a new rectangluar matcher and calculates all distances.

Method Summary

Modifier and Type	Method and Description
private static Point2D[][]	calcDistances(List<Guiding.RawStar> pix) Calculates all distances between pixels.
Point2D	findMatches() Assumption: all the stars can be seen in the image can also be found in the catalog.
void	setDelta(double _deltaPix) Sets the expected uncertainty of the catalog plus image positions in pixels.
void	setDeltaMag(double dm) Sets the expected uncertainty of the catalog to image magnitudes.
void	setTotalMagFactor(double dm) Sets the expected uncertainty of the catalog to image magnitudes.

Methods inherited from class java.lang.Object

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

Field Detail

image

private final List<Guiding.RawStar> image

Pixel coordinates of the stars on the image.

catalog

private final List<Guiding.RawStar> catalog

Pixel coordinates as deduced from the catalog.

imagedist

private final Point2D[][] imagedist

Distance of star at first index to star on second, image space.

catalogdist

private final Point2D[][] catalogdist

Distance of star at first index to star on second, catalog space.

delta

private double delta

The expected uncertainity of the catalog positions in pixels.

deltamag

private double deltamag

The expected uncertainty in differential image magnitudes.

totmag

private double totmag

The expected uncertainty in catalog to image magnitudes in deltamags.

match

private List<Integer>[] match

For each star in the image the indices of the catalog matches.

freq

private List<Integer>[] freq

For each star in the image the indices of the catalog matches.

DEFTOTMAG

private static final double DEFTOTMAG

Per default, we assume that differential magnitudes are more accurate.

See Also:

Constant Field Values

Constructor Detail

RectangularMatcher

public RectangularMatcher(List<Guiding.RawStar> im,
                          List<Guiding.RawStar> cat)

Constructs a new rectangluar matcher and calculates all distances. Prior to matching, the uncertainty should be set.

Parameters:

im - The pixel x/y from the image, as Guiding.RawStar list.

cat - The pixel x/y list from the catalog.

RectangularMatcher

public RectangularMatcher(List<Guiding.RawStar> im,
                          List<Guiding.RawStar> cat,
                          double tt)

Constructs a new rectangluar matcher and calculates all distances. Prior to matching, the uncertainty should be set.

Parameters:

im - The pixel x/y from the image, as Guiding.RawStar list.

cat - The pixel x/y list from the catalog.

Method Detail

calcDistances

private static final Point2D[][] calcDistances(List<Guiding.RawStar> pix)

Calculates all distances between pixels.

setDelta

public void setDelta(double _deltaPix)

Sets the expected uncertainty of the catalog plus image positions in pixels. This uncertainty defines a match, see findMatches().

setDeltaMag

public void setDeltaMag(double dm)

Sets the expected uncertainty of the catalog to image magnitudes. Used to deal with multiple shifts.

setTotalMagFactor

public void setTotalMagFactor(double dm)

Sets the expected uncertainty of the catalog to image magnitudes. Used to deal with multiple shifts.

findMatches

public Point2D findMatches()

Assumption: all the stars can be seen in the image can also be found in the catalog.