joaopalmeiro / ctrlair

A toolbox for Altair.

Ctrlair

A toolbox for Altair.

ctrlair's Issues

Add theme-based helper functions

def print_dict(d):
    print(dumps(d, indent=4))


def get_alt_aesthetic():
    print_dict(alt.themes.get()())


def set_default_alt_aesthetic():
    alt.themes.enable("default")


# More info: https://github.com/altair-viz/altair/blob/master/altair/utils/plugin_registry.py
def get_alt_themes(verbose=True):
    if verbose:
        print(f"Current theme: {repr(alt.themes.active)}")
    return alt.themes.names()


def enable_alt_aesthetic(theme, **options):
    if theme in alt.themes.names():
        alt.themes.enable(theme, **options)
        logging.info(f"The {repr(theme)} theme is enabled.")
    else:
        raise ValueError(f"The {repr(theme)} theme is not available.")


def update_alt_aesthetic(width=300, height=300):
    current_theme = alt.themes.active.replace("_updated", "")
    new_theme = f"{current_theme}_updated"

    alt.themes.register(new_theme, THEMES.get(current_theme))
    enable_alt_aesthetic(new_theme, width=width, height=height)

Add Adobe's Spectrum categorical color scheme.

References:

• https://spectrum.adobe.com/page/color-for-data-visualization/.

Finish unit tests (`unit-testing` branch).

Create the `constants.py` file.

Clarify that the locale that is in the `theme` module is 'en- *' with the euro currency.

References:

• http://publications.europa.eu/code/en/en-370303.htm.
• https://en.wikipedia.org/wiki/Decimal_separator.
• https://github.com/d3/d3-format.

Update the Altair theme type (`typing`).

ThemeType = Dict[str, Dict[str, Union[str, Dict[str, Union[str, int]]]]]

Add Union types for Altair charts.

UAltairChart = Union[
    alt.Chart,
    alt.LayerChart,
    alt.HConcatChart,
    alt.VConcatChart,
    alt.RepeatChart,
    alt.FacetChart,
]

UAltairCompoundChart = Union[
    alt.LayerChart,
    alt.HConcatChart,
    alt.VConcatChart,
    alt.RepeatChart,
    alt.FacetChart,
]

Change `<4` to `<= 3.8` in `setup.py`.

Move the `is_*` functions to the `check.py` file.

Add Pipenv with Jupyter.

Add a function to define the download filename for a single chart.

def set_download_filename(filename: str) -> Dict[str, Dict[str, str]]:
    """
    >>> base = alt.Chart(data, usermeta=set_download_filename(filename))
    """
    return {"embedOptions": {"downloadFileName": f"{filename}"}}

Add an option to have the Vega-Embed menu with emojis.