Line3D relative orientation

[Jose Gabriel Egas Ortuño]

Hi.

O can get the direction of a 3D line, relative to a global frame:

l1.direction

How can I get the direction relative to a frame which has been rotated about the global frame?

Thanks.

[Jose Gabriel Egas Ortuño]

Hi.

I have a line:

p1, p2 = Point3D(x, y, z), Point3D(x, y, z)
l1 = Line3D(p1, p2)

Then I can get the line's orientation relative to a global frame:

l1.direction

Imagine now I rotate the global frame, is there a way to get the direction relative to a rotated frame?

Thanks in advance....

[Chris Smith]

See `help(Line.angle_between)`, especially `smallest_angle_between` -- does that help?

/c