uk.ac.starlink.topcat.func

Class Sdss

java.lang.Object

uk.ac.starlink.topcat.func.Sdss

public class Sdss
extends Object

Specialist display functions for use with the Sloan Digital Sky Server.

Since:

25 Aug 2004

Author:

Mark Taylor (Starlink)

Field Summary

Fields

Modifier and Type	Field and Description
static String	SDSS_BASE_URL Base URL for SkyServer JPEG retrieval service.
static String	SDSS_DR2_BASE_URL Base URL for SkyServer JPEG retrieval service, DR2.

Method Summary

Modifier and Type	Method and Description
static String	sdssShowCutout(double ra, double dec) Displays a colour cutout image of a default size from the SDSS around a given sky position.
static String	sdssShowCutout(double ra, double dec, int pixels, double scale) Displays a colour cutout image of a specified size from the SDSS around a given sky position with pixels of a given size.
static String	sdssShowCutout(String label, double ra, double dec, int pixels) Displays a colour cutout image of a specified size from the SDSS around a given sky position.

Methods inherited from class java.lang.Object

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

Field Detail

SDSS_DR2_BASE_URL

public static final String SDSS_DR2_BASE_URL

Base URL for SkyServer JPEG retrieval service, DR2.

See Also:

Constant Field Values

SDSS_BASE_URL

public static final String SDSS_BASE_URL

Base URL for SkyServer JPEG retrieval service.

See Also:

Constant Field Values

Method Detail

sdssShowCutout

public static String sdssShowCutout(String label,
                                    double ra,
                                    double dec,
                                    int pixels)

Displays a colour cutout image of a specified size from the SDSS around a given sky position. The displayed image is square, a given number of (0.4arcsec) pixels on each side.

Parameters:

label - label for display window

ra - Right Ascension in degrees

dec - Declination in degrees

pixels - size of displayed image in SDSS pixels

Returns:

short log message

sdssShowCutout

public static String sdssShowCutout(double ra,
                                    double dec,
                                    int pixels,
                                    double scale)

Displays a colour cutout image of a specified size from the SDSS around a given sky position with pixels of a given size. Pixels are square, and their size on the sky is specified by the scale argument. The displayed image has pixels pixels along each side.

Parameters:

ra - Right Ascension in degrees

dec - Declination in degrees

pixels - size of displayed image in SDSS pixels

scale - pixel size in arcseconds

Returns:

short log message

sdssShowCutout

public static String sdssShowCutout(double ra,
                                    double dec)

Displays a colour cutout image of a default size from the SDSS around a given sky position. The displayed image is 128 pixels square - a pixel is 0.4arcsec.

Parameters:

ra - Right Ascension in degrees

dec - Declination in degrees

Returns:

short log message