ANN: New WCSLIB 7.4 released

[github-actions[bot]]

New WCSLIB release found.

Version: 7.4 (2021/01/31)

Change log

WCSLIB version 7.4 (2021/01/31)

• C library

  • In wcshdo(), fixed a bug introduced in release 5.9 that potentially caused loss of numerical precision in the sprintf() formatting of floating point keyvalues. This was triggered when a large range of CRPIXja, PCi_ja, or CDELTia values (as three separate groups) were formatted using an 'f' format descriptor, the range not being so large that it would have forced wcshdo() to revert to 'E' format. Reported by Mohammad Akhlaghi.

  Also in wcshdo(), fixed a bug introduced in release 7.1 that caused the coefficients of the TPD distortion function not to be written to the header. TPD and Polynomial distortion function headers will now always include the DPja.DOCORR keyword. Reported by Derek Homeier with patch.

  • In wcsset(), fixed a segv generated in attempting to report a non- standard units string with wcserr message reporting disabled. Reported by Mohammad Akhlaghi.

  In wcsutrne(), allow 'Angstroms' and 'angstroms' as additional synonyms for 'Angstrom'.

  • In datfix(), ensure that 0 is returned if an informational message is set in wcsprm::err. Consequent on feedback independently from Mihai Cara and Bruce Merry.

  Clarified that informational messages may be set in wcsprm::err for returns of 0 from datfix(), obsfix(), unitfix(), and spcfix().

• User manual

  • Added cautions about translating CDi_ja to PCi_ja plus CDELTia for those historical distortion functions (TPV, TNX, ZPX) that expect to operate on intermediate world coordinates, rather than intermediate pixel coordinates. Consequent on feedback from Mohammad Akhlaghi.

  • Documentation generation moved to doxygen 1.9.1 (was 1.8.19).

(For complete change log information, see https://www.atnf.csiro.au/people/mcalabre/WCS/CHANGES .)

[pllim]

Being handled at astropy/astropy#11260