algebra/geometry.py

## \example algebra/geometry.py
# IMP.algebra provides a set of geometric primitives and basic operations
# on them.

from __future__ import print_function
import IMP.algebra
import sys

IMP.setup_from_argv(sys.argv, "geometry")

# we can create some spheres
s = []
for i in range(0, 10):
    s.append(IMP.algebra.Sphere3D(IMP.algebra.get_random_vector_in(
        IMP.algebra.get_unit_bounding_box_3d()), .1))

# we can compute a sphere which contains them all
enclosing = IMP.algebra.get_enclosing_sphere(s)

print(enclosing.get_contains(s[0]))

print(IMP.algebra.get_distance(s[0], s[1]))
# or between the centers
print(IMP.algebra.get_distance(s[0].get_center(), s[1].get_center()))

# create a cylinder
c = IMP.algebra.Cylinder3D(
    IMP.algebra.Segment3D(s[0].get_center(), s[1].get_center()), 1)
print(c)

# manipulate bounding boxes
bb = IMP.algebra.BoundingBox3D()
for si in s:
    bb += IMP.algebra.get_bounding_box(si)