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bug fix in make_hcs_3d.py

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This commit is contained in:
kwikrick 2014-02-09 07:50:44 +00:00
parent 4ca358c1ef
commit bac3e1e103
1 changed files with 3 additions and 3 deletions
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6
geosolver/intersections.py
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@ -343,13 +343,13 @@ def make_hcs_3d (a, b, c, righthanded=True):
v = vector.vector([0.0,1.0,0.0])
elif tol_eq(nu, 0.0):
# determine u perpendicular from v
u,dummy = perp_3d(v)[0]
u,dummy = perp_3d(v)
elif tol_eq(nv, 0.0):
# determine v perpendicular from u
dummy,v = perp_3d(u)[0]
dummy,v = perp_3d(u)
# ensure that u and v are different
if tol_eq(vector.norm(u-v),0.0):
dummy,v = perp_3d(u)[0]
dummy,v = perp_3d(u)
# make the basis vectors orthogonal
w = vector.cross(u,v)
v = vector.cross(w,u)