Bugs: wavdetect

Bugs

1. There cannot be two sets of brackets ("[ ]") in the input file specification.

2. Autonaming of ASCII region files uses the .fits extension instead of .reg as would be expected.

3. Zero-length radius in source region (23 Mar 2007)

4. Comma-separated values for scales parameter (16 May 2007)

5. Wavdetect deletes the input file (10 Oct 2007)

Bugs

1. There cannot be two sets of brackets ("[ ]") in the input file specification.

   An example of an unacceptable syntax is

   unix% wavdetect "evt2.fits[energy=500:8000][bin X=4275:4925:1,Y=3775:4425:1]"
   

   The tool will exit with an error:

   grep: RE error 49: [ ] imbalance.
   parammatch : can't find parameter X in reference list
   parameter error?
   

   Workaround:

   Include the parameter name before the file specfication:

   unix% wavdetect infile="evt2.fits[energy=500:8000][bin X=4275:4925:1,Y=3775:4425:1]"
   

2. Autonaming of ASCII region files uses the .fits extension instead of .reg as would be expected.

   In general, autonaming only works for simple cases.

3. Zero-length radius in source region (23 Mar 2007)

   If the source region determined by wavdetect is only one pixel wide, then the axis in that direction is equal to 0. If the entire region is one pixel square, then both the semi-major and minor axes are (0,0). A region with a zero-length yradius looks like this in the output ASCII region file:

   ellipse(4164.500000,3885.033333,5.986652,0.000000,90.000000)
   

   If the source list is used as stack input to dmextract - e.g. to create radial profiles - these zero-length regions will result in NaN values in the output file, usually because the source area is zero.

4. Comma-separated values for scales parameter (16 May 2007)

   The values given for the scales parameter must be space-separated, e.g "scales='1.0 1.414 2.0 2.828 4.0 5.656 8 11.3'". If commas are used instead, the tool only recognizes the first scale and disregards the rest.

5. Wavdetect deletes the input file (10 Oct 2007)

   If the input filename does not contain a "." (e.g. ".fits"), the tool deletes the input file and exits with an error.