3DPrinting/PrusaSlicer-NonPlainar
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Fixed rotation of mirrored objects in Object Coordinates

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This commit is contained in:
enricoturri1966 2023-02-28 11:47:46 +01:00
parent dcec7a8ad4
commit 148732281d
1 changed files with 10 additions and 2 deletions
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12
src/slic3r/GUI/Selection.cpp
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@ -1006,9 +1006,17 @@ void Selection::rotate(const Vec3d& rotation, TransformationType transformation_
if (m_mode == Instance && !is_wipe_tower()) {
assert(is_from_fully_selected_instance(i));
if (transformation_type.instance()) {
// ensure that the instance rotates as a rigid body
// ensure that the instance rotates as a rigid body
Transform3d inst_rotation_matrix = inst_trafo.get_rotation_matrix();
if (inst_trafo.is_left_handed()) {
Geometry::TransformationSVD inst_svd(inst_trafo);
inst_rotation_matrix = inst_svd.u * inst_svd.v.transpose();
// ensure the rotation has the proper direction
if (!rotation.normalized().cwiseAbs().isApprox(Vec3d::UnitX()))
rotation_matrix = rotation_matrix.inverse();
}
const Transform3d inst_matrix_no_offset = inst_trafo.get_matrix_no_offset();
const Transform3d inst_rotation_matrix = inst_trafo.get_rotation_matrix();
rotation_matrix = inst_matrix_no_offset.inverse() * inst_rotation_matrix * rotation_matrix * inst_rotation_matrix.inverse() * inst_matrix_no_offset;
// rotate around selection center