Tutorial

This tutorial gives a brief overview of the functionality of compas_occ and recommended best practices.

Working with Curves

Working with Surfaces

Working with Breps

Visualisation

Using the plugin system

compas_occ provides a NURBS and Brep (Boundary Representation) backend for COMPAS based on OpenCasCade. Although it ca be used as a standalone package, the recommended way to use it is through the plugin system. The following snippets accomplish the same thing, but the first uses compas_occ directly, and the second uses it as a plugin.

from compas.geometry import Point
from compas_occ.geometry import OCCNurbsCurve

points = [
    Point(0, 0, 0),
    Point(3, 6, 0),
    Point(6, -3, 3),
    Point(10, 0, 0)
]

curve = OCCNurbsCurve.from_points(points)

from compas.geometry import Point
from compas.geometry import NurbsCurve

points = [
    Point(0, 0, 0),
    Point(3, 6, 0),
    Point(6, -3, 3),
    Point(10, 0, 0)
]

curve = NurbsCurve.from_points(points)

The advatage of using the plugin system is that it allows COMPAS to automatically switch to different backends depending on the current environment without chaging the script. For example, when working in Rhino, the first script will throw an error, whereas the second script will work as expected by switching to RhinoCommon as a backend.