Blend2D Python Bindings (nanobind version)
Python bindings for the Blend2D rendering engine using nanobind.
Overview
This project has been converted from the original Cython-based implementation to use nanobind, which offers:
- Improved performance
- Better compatibility with modern C++
- Simplified binding code
- Cleaner implementation
Requirements
- C++17 compatible compiler
- CMake 3.15 or newer
- Python 3.8 or newer
- NumPy
Installation
From PyPI
Pre-built wheels are available for:
- Windows (x86_64)
- macOS (x86_64, arm64/Apple Silicon)
- Linux (x86_64, aarch64/ARM64)
- WebAssembly (via Emscripten)
pip install blend2d-python
From Source
pip install .
Or for development:
pip install -e .
Usage
import numpy as np
from blend2d import Context, Image, Gradient, Path, Format
# Create an image
img = Image(480, 480, Format.PRGB32)
# Attach a rendering context to it
ctx = Context(img)
# Clear the image with white color
ctx.fill_all((1.0, 1.0, 1.0, 1.0))
# Create a linear gradient
gradient = Gradient.create_linear(0, 0, 480, 480)
gradient.add_stop(0.0, (1.0, 0.0, 0.0, 1.0))
gradient.add_stop(0.5, (0.0, 1.0, 0.0, 1.0))
gradient.add_stop(1.0, (0.0, 0.0, 1.0, 1.0))
# Create a path (a star, for example)
path = Path()
path.move_to(240, 80)
for i in range(5):
angle = (i * 2.0 * np.pi / 5.0) + np.pi / 2.0
path.line_to(240 + 160 * np.cos(angle), 240 + 160 * np.sin(angle))
# Fill the path with the gradient
ctx.set_fill_style(gradient)
ctx.fill_path(path)
# Save the image to a file
img.write_to_file("star.png")
Building Wheels
This project uses cibuildwheel to build wheels for multiple platforms:
- Windows (x86_64)
- macOS (x86_64, arm64/Apple Silicon)
- Linux (x86_64, aarch64/ARM64)
- WebAssembly (via Emscripten)
To build wheels locally:
pip install cibuildwheel
python -m cibuildwheel --platform auto
License
MIT License
Acknowledgements
This project was originally created by John Wiggins using Cython, and has been converted to use nanobind.
1 maintainer
Metadata
1 maintainer
Release files for blend2d-python 1.0.0
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