generativepy

Generative art and graphing library for creating images and animations.

Version 24.04 notes

3D drawing is likely to change in a future release. The rest of the library is reasonably stable.

• Most shapes can now optionally accept FillParameters and StrokeParameters to control fill and stroke styles. This makes it easier to share styles amongst different objects.
• Add scatter plots, including stalk and connected styles.
• Add a basic Vector3 implementation to math module.
• New Markers class to rationalise line markers (ticks, paraticks, parallel markers), adding new markers and allowing position to be controlled.
• New overlay_nparrays function in nparray module allows two images to be overlaid, treating pure white as transparent.
• Add 3D charts (z against xy) using povray. Also added complex module to genpygoodies to help with plotting complex graphs
• Add povray module with capability of drawing 3D shapes using vapory module.
• Plot now has a close parameter that creates a polygon area based on a section of the curve that can then be filled. This can be the area under the curve, or above the curve, or any area created be extending the curve with additional points.
• Update docstrings of all modules to support autogenerated documentation on generativepy.com

Usage

generativepy is a library rather an application. It provides useful functions and example code that allow you to create images and videos by writing simple Python scripts.

The library requires:

• pycairo.
• NumPy.
• Pillow.
• easy_vector.
• moderngl (only required for 3D imaging).
• MoviePy
• Command line application gifsicle (only needed for GIF creation).
• Commandline applications latex and divpng

Main functionality:

• A simple framework for creating images, image sequences, and gifs, using pycairo.
• Support for bitmap processing using PIL and NumPy.
• Colour module that supports RGB, HSL and CSS colours, transparency, lerping, colormaps.
• A simple tweening module to help with animation.
• Geometry module for drawing shapes.
• A graphing library for plotting 2D functions.
• MovieBuilder supports creating video files from separate scenes.
• Latex formula rendering
• 3D geometry module using moderngl.
• Math modules for vectors, matrices and abstract shapes.

Website

Visit pythoninformer.com for details:

• generativepy reference.
• generativepy tutorials.

There are also some art examples in the Generative Art section of my blog.

For detailed information of pycairo see the Computer graphics in Python ebook.