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  1. Data Management
  2. DM-10524

Improve constrainedPolyModel to use constrained affine chip and unconstrained polynomial visit models

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      Now that the constrainedPolyModel is selectable, we should improve it to bring it closer in line with what we expect the LSST Frames model will be. This would entail switching the TwoTransfoMapping to have T1 be an affine gtransfo constrained per chip (chips don't wiggle much), and T2 be an unconstrained polynomial (to nominally take out the variable sky component plus the optics, which we'll constrain later).

      This may be as simple as swapping the models and where the constraint is defined. It would be very useful to have better plotting tools available to inspect the resulting models, and also possibly to have AST persistence available so we aren't having to squash the result into a TAN-SIP.

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            Parejkoj John Parejko added a comment - - edited

            Once this is improved, we should be able to remove the nested try:catch blocks in produceSipWcs.

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            Parejkoj John Parejko added a comment - - edited Once this is improved, we should be able to remove the nested try:catch blocks in produceSipWcs .
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            Parejkoj John Parejko added a comment -

            DM-13674 obviates the need for cleaning up the dynamic cast problems in produceSipWcs that are mentioned above.

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            Parejkoj John Parejko added a comment - DM-13674 obviates the need for cleaning up the dynamic cast problems in produceSipWcs that are mentioned above.
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            Parejkoj John Parejko added a comment -

            This was done as part of DM-13272.

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            Parejkoj John Parejko added a comment - This was done as part of DM-13272 .

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              • Assignee:
                Parejkoj John Parejko
                Reporter:
                Parejkoj John Parejko
                Watchers:
                Dominique Boutigny, John Parejko, John Swinbank, Pierre Astier, Simon Krughoff
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