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if a== 0 do_noting

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Justin Lin
2019-05-13 08:27:02 +08:00
parent 48e52fa48b
commit 6fbe42ba8f
1 changed files with 6 additions and 1 deletions
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7
src/m_rotation.scad
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@@ -78,4 +78,9 @@ function _xyz_rotation(a) =
_m_zRotation(ang[2]) * _m_yRotation(ang[1]) * _m_xRotation(ang[0]); _m_zRotation(ang[2]) * _m_yRotation(ang[1]) * _m_xRotation(ang[0]);
function m_rotation(a, v) = function m_rotation(a, v) =
v == undef ? _xyz_rotation(a) : _q_rotation(a, v); a == 0 ? [
[1, 0, 0, 0],
[0, 1, 0, 0],
[0, 0, 1, 0],
[0, 0, 0, 1]
] : (v == undef ? _xyz_rotation(a) : _q_rotation(a, v));