Version 6.3 (3-Sept-08) of PyDrizzle has been verified to use TDD corrected headers as input for both WCSModel and IDCModel. In addition, the output DRZ image header no longer gets written out with SIP coeffs, or any additional keywords used by PyDrizzle/makewcs for intepreting SIP.  The TDD keywords are also removed. Finally, the CTYPE for the output image is reset to --TAN, not --TAN-SIP, since the SIP convention deals with distortion, and all distortion has been removed already.  Version 1.0 of 'makewcs' was also updated to support these recent changes to generate TDD corrected headers and save the non-TDD corrected CD matrix elsewhere in the header.
Version 6.3 (3-Sept-08) of PyDrizzle has been verified to use TDD corrected headers as input for both WCSModel and IDCModel. In addition, the output DRZ image header no longer gets written out with SIP coeffs, or any additional keywords used by PyDrizzle/makewcs for intepreting SIP.  The TDD keywords are also removed. Finally, the CTYPE for the output image is reset to --TAN, not --TAN-SIP, since the SIP convention deals with distortion, and all distortion has been removed already.  Version 1.0 of 'makewcs' was also updated to support these recent changes to generate TDD corrected headers and save the non-TDD corrected CD matrix elsewhere in the header.

This version should serve as the regression standard for verifying results from the HSTWCS-based C-code drizzle version of Multidrizzle. WJH



git-svn-id: e4aa3cfa51ba591d1cd1dbbaf7e4a2c2b5d7a7ff@7046 fe389314-cf27-0410-b35b-8c050e845b92

spacetelescope/stsci.tools