Project: datamanagement
Issue DM-2921: Set Approximation as default for background subtraction
Once the Approximate code in {{afw.math}} has been cleaned up (see DM-2920), set the default for background subtraction to be the Chebychev Approximation (i.e. useApprox=True). Ensure any other relevant config defaults (e.g. binSize, approxOrderX) are adjusted appropriately. This will change the outputs of the {{lsst_dm_stack_demo}}, so the "expected" files will need to be replaced along with this change in default settings (see DM-2778 for some comparisons of the demo outputs using the interpolation vs. approximation background estimation schemes).
Story points: 1