foamyguy-circuitpython-gradienthelper

Introduction

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Tools for generating color gradient palettes and sha

Dependencies

This driver depends on:

• Adafruit CircuitPython <https://github.com/adafruit/circuitpython>_

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle <https://circuitpython.org/libraries>_ or individual libraries can be installed using circup <https://github.com/adafruit/circup>_.Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI <https://pypi.org/project/Foamyguy-circuitpython-gradienthelper/>_. To install for current user:

.. code-block:: shell

pip3 install Foamyguy-circuitpython-gradienthelper

To install system-wide (this may be required in some cases):

.. code-block:: shell

sudo pip3 install Foamyguy-circuitpython-gradienthelper

To install in a virtual environment in your current project:

.. code-block:: shell

mkdir project-name && cd project-name
python3 -m venv .venv
source .env/bin/activate
pip3 install Foamyguy-circuitpython-gradienthelper

Installing to a Connected CircuitPython Device with Circup

Make sure that you have circup installed in your Python environment. Install it with the following command if necessary:

.. code-block:: shell

pip3 install circup

With circup installed and your CircuitPython device connected use the following command to install:

.. code-block:: shell

circup install gradienthelper

Or the following command to update an existing version:

.. code-block:: shell

circup update

Usage Example

.. code-block:: python

from foamyguy_gradienthelper import (
    linear_gradient,
    polylinear_gradient,
    bezier_gradient,
)

def print_palette(palette):
    out_str = "["
    for color in palette:
        out_str = f"{out_str}{color:#0{8}x}, "
    out_str = out_str[:-2]
    out_str = f"{out_str}]"
    print(out_str)

linear_colors = linear_gradient(0xFF0000, 0x0000FF, 10)
print_palette(linear_colors)

polylinear_colors = polylinear_gradient((0x00FF00, 0xFFFF00, 0x00FFFF), 30)
print_palette(polylinear_colors)

bezier_colors = bezier_gradient((0xFF00FF, 0x00FFFF, 0x00FF00), 100)
print_palette(bezier_colors)

Documentation

API documentation for this library can be found on Read the Docs <https://circuitpython-gradienthelper.readthedocs.io/>_.

For information on building library documentation, please check out this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>_.

Contributing

Contributions are welcome! Please read our Code of Conduct <https://github.com/Foamyguy/Foamyguy_CircuitPython_GradientHelper/blob/HEAD/CODE_OF_CONDUCT.md>_ before contributing to help this project stay welcoming.