v0.17.0 – 2022-09-27

Summary

There are three major changes in this release:

1. It is now possible to configure multiple reconstructors to be applied (at the moment, this means you can both run HillasReconstructor and HillasIntersection using ctapipe-process).

2. The naming scheme of telescope wise quantities at dl2 changed. In 0.16, e.g. the reconstructed impact distance to a specific telescope was HillasReconstructor_tel_distance, missing the prefix of the container the field was defined in. This is now fixed and the same column is now HillasReconstructor_tel_impact_distance.

3. The HillasReconstructor was optimized to remove pure-python loops over telescopes which resulted in a ca. 5x speed up when running on a La Palma prod6 run.

For smaller changes and bug fixes, see blow list of merged PRs.

Contributors

@Hckjs, @HealthyPear, @LukasNickel, @StFroese, @kosack, @maxnoe and @nbiederbeck

What has changed since v0.16.0

Pull-requests containing changes of multiple nature are repeated.

New features

• add --datamodel option to ctapipe-info (#2047) @kosack
• Merge DL2 tables. (#2050) @nbiederbeck

API Changes

• Improve ShowerProcessor API, fixes #2071 (#2073) @StFroese

Data Model Changes

• Use _impact_ instead of _tel_, fixes #2051 (#2060) @nbiederbeck

Bug Fixes

• Fix invalid case in HillasReconstructor and HillasIntersection (#2082) @maxnoe
• Convert float32 pi/2 value to float64 pi/2 value in SimTelEventSource (#2077) @maxnoe
• Allow data model version 4 in HDFEventSource, actually check which frame is used for hillas parameters (#2079) @maxnoe
• Fix unreachable assertion in Provenance unit test (#2072) @HealthyPear
• Fix wrong container used for camera frame in ImageProcessor, fixes #2062 (#2070) @maxnoe
• Fix tables.Node.__del__ throwing exceptions on interpreter exit when writing index tables, fixes #2067 (#2069) @maxnoe
• Sort unique cameras/types/optics to generate stable indices in hdf5, fixes #2063 (#2066) @maxnoe
• Make ExpressionEngine be no Component. Fixes #2065. (#2068) @nbiederbeck
• Fix camera rotation in examples/camera_rotation.py (#2056) @Hckjs
• Report HDF5EventSource as compatible for dl2 only files, fixes #2058 (#2059) @LukasNickel
• Merge simulated impact (#2049) @nbiederbeck
• Fix Container.as_dict for case of flatten=True and add_prefix=True (#1887) @maxnoe

Refactoring and Optimization

• Vectorize operations in HillasReconstructor (#2036) @maxnoe

Maintenance

• Change recommendation on reusing ArrayEvent in EventSources (#2076) @maxnoe
• Update mailmap (#2053) @maxnoe