[bug #59324] Erroneous values of rotation and scaling for some quads

[Sachin Kumar Singh]

URL:
  <https://savannah.gnu.org/bugs/?59324>

                 Summary: Erroneous values of rotation and scaling for some
quads
                 Project: GNU Astronomy Utilities
            Submitted by: sks_15
            Submitted on: Fri 23 Oct 2020 11:26:10 AM UTC
                Category: Development
                Severity: 3 - Normal
              Item Group: Output not reasonable
                  Status: In Progress
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

After finally matching the query-quads with the reference-quads and
calculating the value of fo rotation and scaling between them, most of the
values for the quads are fine and approximate and can finally be used to make
the CD matrix.

But some values are still erronous and have an opposite sign than other values
for the same quad. See this
<https://gitlab.com/sachinkumarsingh092/gnuastro-matching-fits-nohealpix/-/commit/6d889d48eeb77bedce948beceeef29ef8906cbd4>
commit for changes.




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