Modified applications

The following applications have been modified:

COMPADD

• New Parameters TRIM and ALIGN have been added to give greater control over the exact placement of the compression bins within the input image.

COMPAVE

• New Parameters TRIM and ALIGN have been added to give greater control over the exact placement of the compression bins within the input image.

FITSIN

• Now supports the new FITS WCS standards based on keywords CDi_j, PVj_m, etc, plus explicit support for the previous draft standard (based on PCjjjiii keywords), and the AIPS WCS system (based on keywords CDELTj and CROTAj).

FITSDIN

• Now supports the new FITS WCS standards based on keywords CDi_j, PVj_m, etc, plus explicit support for the previous draft standard (based on PCjjjiii keywords), and the AIPS WCS system (based on keywords CDELTj and CROTAj).

GAUSMOOTH

• The FWHM parameter can now accept values up to 10000.0.

GDSTATE

• The bounds of the current picture can now be reported in any of the co-ordinate Frames included in the WCS information stored with the picture.

• The graphical attributes of the box drawn round the current picture can now be controlled using the new STYLE parameter.

• The Domain of the current Frame associated with the picture is now writen to an output parameter.

• The following parameters have been removed (alternatives to using these old parameters are indicated):

  NCX1, NCX2, etc.

  -- Set FRAME="BASEPIC" and use X1, X2, etc., remembering that NCX1 etc. referred to a Frame in which the longer axis had unit length, where-as the shorter axis has unit length in the BASEPIC Frame .

  WCX1, WCX2, etc.

  -- Set FRAME=! and use X1, X2, etc.

• The following new parameters have been added: DESCRIBE, EPOCH, FRAME, STYLE.

GLITCH

• GLITCH has been rewritten to use the NDF library and thus can take advantage of NDF facilities including sections and history, and can accept foreign-format files.

• Variance information is now propagated from input to output. The variance associated with each replaced pixel is the variance on the median of the corresponding input pixels.

• When supplying the positions of bad pixels in a text file, the first line in no longer treated as an informational header line. Each line in the file must be either a comment starting with the character # or !, or a valid position in the current co-ordinate Frame  of the input NDF.

• The supplied pixel positions now refer to the current co-ordinate Frame of the input NDF, which need not necessarily be pixel co-ordinates.

• Pixel positions can now be supplied in a positions list catalogue such as created by CURSOR, LISTMAKE, etc.

• The WHERE parameter has been renamed as MODE, and the FILENAME parameter has been renamed as INFILE.

• The XCOORD and YCOORD parameters have been replaced by the single Parameter PIXPOS.

• The AGAIN parameter has been removed. Looping now always occurs in Interface mode unless a value for Parameter PIXPOS is supplied on the command line.

HISTOGRAM

now supports various methods for specifying the upper and lower horizontal limits of the plot. See Parameter RANGE.

HISTAT

• Now uses an improved algorithm for calculating the median and percentiles which reduces the effect of extreme outliers on the results.
• The NUMBIN parameter has been removed.

IDSTATE

The changes made to GDSTATE have also been made to IDSTATE.

NDFCOPY

• New Parameters TRIM, TRIMWCS and USEAXIS control the removal of output axes which span only a single pixel. Thus, NDFCOPY can now be used to extract a single plane from a cube and create a genuinely 2 dimensional output image (previously, the third pixel axis was retain with bounds spanning a single pixel).

PSF

• The default normalization of the model PSF is now chosen to give a peak value of exactly 1.0. Previously, the peak value could be higher or lower than 1.0 depending on whether the PSF was narrower or wider than a Gaussian.
• New Parameters NORM and AMP1 have been added. NORM allows the peak value of the model PSF to be set equal to the fitted peak value of the first usable star, instead of the default value of 1.0. AMP1 is an output parameter which receives the fitted peak value of the first usable star, in the data units of the input NDF.
• A bug has been fixed which could cause PSF to fail if the search box contains any bad pixels.
• A bug has been fixed which could incorrect star positions to be used (sometimes moving them entirely off the image) if the current Frame of the NDF is AXIS.

SEGMENT

• Input positions may now be supplied in the form of positions lists as produced by CURSOR, LISTMAKE, etc.

• In "Interface" and "File" modes, co-ordinates are now required in the current Frame of the first supplied input NDF.

• A wider range of graphics are now available to mark the supplied positions when using cursor mode, and the attributes of these graphics can now be controlled using the new STYLE parameter.

• The following parameters have been removed (alternatives to using these old parameters are indicated):

  AXES

  -- Use new Parameter USEAXIS. Note, if the data array has more than 2 dimensions and the axes of the current co-ordinate Frame are not parallel to the pixel axes, it is usually advisable to set the current co-ordinate Frame to PIXEL before using SEGMENT.

  CLEAR

  -- Use command gdclear current before runnning SEGMENT.

  COLOUR

  -- Use the new STYLE parameter to set the Colour  attribute.

  COSYS

  -- Use application WCSFRAME to set the required co-ordinate Frame first.

• The following new parameters have been added: INCAT1 - INCAT20, MARKER, STYLE, USEAXIS.

• The following parameters have been changed:

  COORDS

  -- Now has type LITERAL instead of _REAL. The position should be given as a pair of formatted axis value within the current co-ordinate Frame of the first specified input NDF.

  MODE

  -- Now recognizes "Catalogue" as a valid value.

  PLOT

  -- New values "Chain" and "Mark" replace the old value "Cross".

  POLY1-POLY20

  -- The supplied files should now contain positions in the current co-ordinate Frame of the first specified input NDF.

SETAXIS

• Axis structures can now be added to an NDF by copying them from another NDF. The template NDF is specified using the new Parameter LIKE.

SURFIT

• A new output parameter called RMS has been added. The RMS deviation of the fit from the original data (per pixel) is stored in this output parameter on exit.

ZAPLIN

• Positions are now supplied and reported in the current co-ordinate Frame of the input NDF.

• A wider range of graphics are now available to mark the supplied image areas when using cursor mode, and the attributes of these graphics can now be controlled using the new STYLE parameter.

• The following parameters have been removed (alternatives to using these old parameters are indicated):

  COSYS

  -- Use application WCSFRAME to set the required co-ordinate Frame first.

  MARK

  -- Use new Parameter PLOT to specify the type of graphics to mark each position with.

• The following new parameters have been added: MARKER, PLOT, STYLE, USEAXIS.

• The following parameters have been changed:

  COLIN

  -- The text file supplied for Parameter COLIN should now contain axis values in the current co-ordinate Frame of the input NDF.

  COLOUT

  -- The created text file contains axis values in the current co-ordinate Frame of the input NDF.

  COLUMNS

  -- The supplied values should now refer to the first axis in the current co-ordinate Frame of the input NDF.

  LINES

  -- The supplied values should now refer to the second axis in the current co-ordinate Frame of the input NDF.