Python CAD

### Python CAD Libraries and Tools

For computer-aided design (CAD), several libraries and tools are available within the Python ecosystem that cater to various needs ranging from simple geometric operations to complex modeling tasks.

One prominent library is `CadQuery`, which allows for parametric solid 3D model creation using a programmatic approach. CadQuery can be used alongside FreeCAD or as an independent tool, providing powerful features such as creating solids by extruding sketches along paths[^2].

Another notable mention is `pythreejs`. This package integrates with Jupyter notebooks, enabling interactive visualization of three-dimensional objects directly in web browsers through JavaScript rendering engines. While primarily focused on graphics rather than traditional CAD functionalities, pythreejs serves well when combined with other computational geometry packages like Shapely or SymPy for more advanced applications.

Additionally, there exists `ezdxf`, designed specifically for handling DXF files – one of the most common formats employed across different CAD platforms. Ezdxf supports both reading existing drawings and writing new ones programmatically via its intuitive API structure.

Lastly, it's worth mentioning `compas`—a framework developed at ETH Zurich aimed at architectural research but applicable beyond this field due to its versatility. Compas includes modules dedicated not only to form finding algorithms but also robotic fabrication processes among others.

import cadquery as cq
from ezdxf import readfile

# Example code snippet demonstrating basic usage patterns found in these libraries.
result = cq.Workplane("front").box(10, 5, 3).edges().fillet(1)

dwg = readfile('example.dxf')
msp = dwg.modelspace()