Mihai Cara

Is exptime weighting not applied when input weight image is None?

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Please refer to: https://github.com/spacetelescope/drizzlepac/blob/ed40f611bf9bc040485493a79ed0beae70e3c131/src/cdrizzlebox.c#L554-L560 It looks like when input weight image is not provided, exptime or expsq scaling is not performed and all images are weighted equally. This unexpected (to...

API re-design: simplify interface, remove I/O, make instrument agnostic

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~WARNING: This first commit is the first draft and it is definitely not ready for merging and unit tests have not been updated. Also, documentation is incomplete.~ This PR quite...

Reformat C code using clang-format

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Apply uniform style to C code similar to PEP8 rules for Python code. This uses modified Google style. "external" FCT headers have been moved to a separate folder in order...

Feature request: Allow deleting frames (and transformations)

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Currently GWCS has functions for setting and inserting transformations. However, there is no way of deleting a frame and the transformation between that frame and a adjacent frame.

Prevent creation of WCS with (or insertion of) duplicate frames

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In https://github.com/spacetelescope/jwst/pull/2629#discussion_r221419842 @nden said: > all frame names in the pipeline must be unique In this issue I propose that this be enforced when the `WCS` object is created or...

Add a check for separation and tolerance in tweakreg

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This PR adds a check that `(abs_)separation` > `sqrt(2) * (abs_)tolerance` input parameters to the `tweakreg` step. It also adds a comment in the docstring about these parameters. **Checklist for...

JP-2256: Apply median filter to IVM weight

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Resolves [JP-2256](https://jira.stsci.edu/browse/JP-2256) This PR addresses the issue of lower flux in saturated sources in resampled images when resampling is done using the IVM weighting. By applying median filtering to the...

Assertion error when computing intersection of nearly overlapping polygons

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When computing intersections of almost overlapping polygons. Example: ```python >>> import numpy as np >>> from spherical_geometry.polygon import SphericalPolygon >>> p1 = SphericalPolygon( ... np.array([[-0.1094946215827374, -0.8592766830993238, -0.499654390280199 ], ... [-0.1089683641318892,...

Move common resample code to stcal

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This PR add the common resample code used by both JWST and Roman pipelines to stcal. Also, for the first time, this PR adopts the new `drizzle` API from https://github.com/spacetelescope/drizzle/pull/134...

require numpy released ver

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require released version of numpy instead of RC. CC: @zacharyburnett