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  1. Data Management
  2. DM-13159

Utilize new polynomials library in meas_astrom

    Details

    • Type: Story
    • Status: To Do
    • Resolution: Unresolved
    • Fix Version/s: None
    • Component/s: afw
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    • Story Points:
      4

      Description

      DM-13065 adds a new low-level polynomials library to afw::math, incorporating but heavily modifying code from afw.math.ChebyshevBoundedField, meas.astrom.PolynomialTransform, and shapelet.

      The new, unused, not-quite-working TAN-SIP fitter code should be rewritten on top of this new library. It should be possible to remove a lot of duplicate code.

      It might also make more sense to rework this as a TAN+Chebyshev fitter whose results can be transformed to SIP for FITS-friendly persistence (while keeping our internal representation in Chebyshev). This should be similarly easy with the new polynomials library, and should be much more robust.

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                • Assignee:
                  Unassigned
                  Reporter:
                  jbosch Jim Bosch
                  Watchers:
                  Jim Bosch
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