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Bugfix for rot

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Revar Desmera
2020-03-03 19:17:14 -08:00
parent 12d3a46a12
commit ee30513644
4 changed files with 15 additions and 8 deletions
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8
vectors.scad
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@@ -140,9 +140,11 @@ function vector_angle(v1,v2=undef,v3=undef) =
assert(false, "Bad arguments.")
) :
(is_vector(v1) && is_vector(v2) && is_vector(v3))? vector_angle(v1-v2, v3-v2) :
// NOTE: constrain() corrects crazy FP rounding errors that exceed acos()'s domain.
(is_vector(v1) && is_vector(v2) && is_undef(v3))? acos(constrain((v1*v2)/(norm(v1)*norm(v2)), -1, 1)) :
assert(false, "Bad arguments.");
(is_vector(v1) && is_vector(v2) && is_undef(v3))? (
assert(len(v1)==len(v2))
// NOTE: constrain() corrects crazy FP rounding errors that exceed acos()'s domain.
acos(constrain((v1*v2)/(norm(v1)*norm(v2)), -1, 1))
) : assert(false, "Bad arguments.");
// Function: vector_axis()