Chaosmagpy

Features
^^^^^^^^
* Made Matplotlib an optional dependency of ChaosMagPy.
* Added optional dependencies to ``pyproject.toml``.

Bugfixes
^^^^^^^^
* Removed deprecated matplotlib call to register a colormap. The previous
version caused an ImportError with matplotlib >=3.9.

Features
^^^^^^^^
* Updated RC-index file to RC_1997-2023_Dec23_v5.dat (used during the
construction of CHAOS-7.17).
* Extended :func:`chaosmagpy.coordinate_utils.geo_to_gg` and
:func:`chaosmagpy.coordinate_utils.gg_to_geo` to also allow for the
rotation of vector components.
* Removed Cartopy from the dependencies (basic map projections are done with
Matplotlib and coastlines are loaded from Natural Earth). New dependency for
reading the coastline shapefile is PyShp (>=2.3.1).
* Added function :func:`chaosmagpy.chaos.load_IGRF_txtfile` to load the IGRF
model from the coefficient TXT-file.

Features
^^^^^^^^
* Updated RC-index file to RC_1997-2023_Feb_v8_Dst_mod.dat (used during the
construction of CHAOS-7.14).
* Plotting function do not return figure and axes handles anymore. If needed,
they can be accessed through matplotlib's ``gcf()`` and ``gca()``.
* Added function :func:`chaosmagpy.model_utils.sensitivity` to compute the
sensitivity of spherical harmonic coefficients.
* Changed the default colormap for the component maps to ``'PuOr_r'`` (orange
for positive values and purple for negative ones).

Bugfixes
^^^^^^^^
* Fixed error in :func:`chaosmagpy.data_utils.load_shcfile` when reading
single piece, quadratic splines. Error was due to a failure to identify the
shc-parameter line as the first non-comment line in the file.
* Fixed KeyError that is raised when no name is given to the
:class:`chaosmagpy.chaos.CHAOS` constructor. This only affected direct calls
to the constructor due to an outdated config keyword.

| **Version of CHAOS:** CHAOS-7.12 (0712) and CHAOS-7.13 (0713)

Features
^^^^^^^^
* Updated RC-index file to RC_1997-2022_Sept_v3.dat.
* Improved time conversion paragraph in the usage section.
* Added option to :func:`chaosmagpy.coordinate_utils.sh_analysis` to increase
the grid size for the numerical integration.
* Made time conversion functions (:func:`chaosmagpy.data_utils.mjd2000`,
:func:`chaosmagpy.data_utils.timestamp`,
:func:`chaosmagpy.data_utils.dyear_to_mjd`,
:func:`chaosmagpy.data_utils.mjd_to_dyear`) directly available upon import.
* Extended :func:`chaosmagpy.model_utils.power_spectrum` to accept NumPy style
``axis`` keyword argument, and added new tests for this function.
* Added more detailed error message when requesting near-magnetospheric
coefficients outside the domain covered by the RC-index file.
* Added input parameters ``rc_e`` and ``rc_i`` to the model call method.

| **Version of CHAOS:** CHAOS-7.11 (0711)

Features
^^^^^^^^
* Updated RC-index file to RC_1997-2022_June_v3.

| **Version of CHAOS:** CHAOS-7.10 (0710)

Features
^^^^^^^^
* Updated RC-index file to RC_1997-2022_Feb_v3.
* Changed the default leap year setting when loading/saving shc-files using
the model classes to ``leap_year=False``.
* Added function :func:`chaosmagpy.chaos.load_CALS7K_txtfile` to read the
CALS7K coefficients file.
* Function :func:`chaosmagpy.model_utils.design_gauss` now accepts
multidimensional shapes of input grids and preserves them in the output.
* Added new method :meth:`chaosmagpy.chaos.Base.to_ppdict`, which returns a
dictionary of the pp-form compatible with MATLAB.
* Added support for calibration parameters.
* Renamed "params.version" in basicConfig to "params.CHAOS_version".

Bugfixes
^^^^^^^^
* Functions :func:`chaosmagpy.data_utils.dyear_to_mjd` and
:func:`chaosmagpy.data_utils.mjd_to_dyear` now correctly convert
negative decimal years and negative modified Julian dates (erroneous offset
of 1 day due to rounding to integer values).