Best way to rotate/stretch a face with API?

Developers Ruby API
2

I’d make a plane for the new end face (see overview of Geom module.)

Then use each edge object’s #line() method to get an array of lines to intersect with the plane.

See Geom::intersect_line_plane module method.

Something like (untested):

# assume var "plane" was set using a point
#  on the plane and it's normal vector,
# and var "edges" is an array of the horizontal edge objects

lines = edges.map {|e| e.line }
new_points = lines.map {|line| Geom.intersect_line_plane(line, plane) }

vecs = []
verts = []

new_points.each_with_index {|pt,i|
  verts << edges[i].end
  vecs << edges[i].end.position.vector_to(pt)
}

ents = edges[0].parent
ents.transform_by_vectors( verts, vecs )

Ref related topic in this category:

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