Geometry

Useful links:

COMPAS main

The main library of COMPAS provides flexible data structures, a geometry processing library, robot fundamentals, numerical solvers, and various other components as a base framework for computational AE(F)C research.

The CAD packages (compas_rhino, compas_ghpython, compas_blender) provide a unified framework for reading and writing CAD geometry, for visualization of COMPAS geometry and data structures, and for basic user inter interaction in Blender, Rhino, and Grasshopper.

Cross Product

Cross Product using COMPAS Classes

>>> from compas.geometry import Vector

>>> u = Vector(1.0, 0.0, 0.0)
>>> v = Vector(0.0, 1.0, 0.0)

>>> uxv = u.cross(v)

>>> print(uxv)

Vector(0.000, 0.000, 1.000)

Draw in Plotters

>>> from compas.geometry import Pointcloud
>>> from compas_plotters import Plotter

>>> cloud = Pointcloud.from_bounds(10, 5, 0, 20)

>>> points = []
>>> for xyz in cloud:
>>>     points.append({'pos': xyz, 'radius': 0.8})

>>> plotter = Plotter(figsize=(8, 5))
>>> plotter.draw_points(points)
>>> plotter.show()

Draw in Rhino using artists

from random import random
from compas.geometry import Pointcloud,Point, Circle, Plane
from compas.utilities import i_to_green, i_to_red
from compas_rhino.artists import PointArtist, CircleArtist

cloud = Pointcloud.from_bounds(10, 5, 0, 50)

for point in cloud:
    n = random()
    PointArtist(point, color=i_to_red(n), layer="points").draw()
    circle = Circle(Plane([0, 0, 0], [0, 0, 1]), n)
    circle.center = point
    CircleArtist(circle, color=i_to_red(n), layer="circles").draw()