Create a workplane perpendicular to a line

[Jopie01]

I want to create a sweep along a line. So I create a line first as the path and then I want to create the section to be swept along the line. To do that, I have to calculate different angels and positions. Is it possible to add a workplane at the end of the path and perpendicular to the that path?

path = (cq.Workplane("YZ")
    .transformed(offset=(-200, -30, 340))
    .lineTo(3896, 2310)
)

p = (path.edges().workplane()
    .rect(40, 40)
)

show_object([path, p])

p in this case is at the end of the path, but not perpendicular.

[lorenzncode]

Here is an example (free function API in master branch):

import cadquery as cq
from cadquery.occ_impl.shapes import *

pts = [(10, 10, 0), (20, 10, 10), (30, 10, -10), (30, 0, 0)]

path = spline(pts)
# create plane at start of path with normal tangent to path
plane = cq.Plane(origin=path.startPoint(), normal=path.tangentAt(0))
profile = cq.Workplane(plane).polygon(3, 1).val()
sweep = sweep(profile, path, True)

In your case with the path Edge in Workplane:

import cadquery as cq

path = (cq.Workplane("YZ")
        .transformed(offset=(-200, -30, 340))
        .lineTo(3896, 2310)
        )

plane = cq.Plane(origin=path.val().endPoint(), normal=path.val().tangentAt(1))
p = cq.Workplane(plane).rect(40, 40)
res = p.sweep(path)

[Jopie01]

Thanks a lot! It works perfectly.