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all is double now, and clarifying comment

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Michael Kirsch 2019-07-06 02:16:36 +02:00 committed by Joseph Lenox
parent ea8a8eef2b
commit e82c6ec912
1 changed files with 1 additions and 3 deletions
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4
xs/src/libslic3r/TransformationMatrix.cpp
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@ -277,8 +277,6 @@ TransformationMatrix TransformationMatrix::mat_rotation(double angle_rad, const
TransformationMatrix TransformationMatrix::mat_rotation(Vectorf3 origin, Vectorf3 target)
{
// TODO: there is a lot of float <-> double conversion going on here
TransformationMatrix mat;
double length_sq = origin.x*origin.x + origin.y*origin.y + origin.z*origin.z;
double rec_length;
@ -333,7 +331,7 @@ TransformationMatrix TransformationMatrix::mat_rotation(Vectorf3 origin, Vectorf
}
}
else
{// not colinear, cross represents rotation axis so that angle is positive
{// not colinear, cross represents rotation axis so that angle is (0, 180)
// dot's vectors have previously been normalized, so nothing to do except arccos
double angle = acos(dot);