3DPrinting/PrusaSlicer-NonPlainar
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Fix of a regression bug - joint rotation of multiple instances.

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The bug was likely introduced with b89e95aea7
This commit is contained in:
bubnikv 2019-05-15 15:22:18 +02:00
parent 84f09df03e
commit 036920a43b
1 changed files with 6 additions and 2 deletions
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8
src/slic3r/GUI/Selection.cpp
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@ -522,6 +522,10 @@ void Selection::rotate(const Vec3d& rotation, TransformationType transformation_
//FIXME this does not work for absolute rotations (transformation_type.absolute() is true)
rotation.cwiseAbs().maxCoeff(&rot_axis_max);
// if ( single instance or single volume )
// Rotate around center , if only a single object or volume
// transformation_type.set_independent();
// For generic rotation, we want to rotate the first volume in selection, and then to synchronize the other volumes with it.
std::vector<int> object_instance_first(m_model->objects.size(), -1);
auto rotate_instance = [this, &rotation, &object_instance_first, rot_axis_max, transformation_type](GLVolume &volume, int i) {
@ -542,8 +546,8 @@ void Selection::rotate(const Vec3d& rotation, TransformationType transformation_
transformation_type.absolute() ? rotation : rotation + m_cache.volumes_data[i].get_instance_rotation();
if (rot_axis_max == 2 && transformation_type.joint()) {
// Only allow rotation of multiple instances as a single rigid body when rotating around the Z axis.
Vec3d offset = Geometry::assemble_transform(Vec3d::Zero(), Vec3d(0.0, 0.0, new_rotation(2) - m_cache.volumes_data[i].get_instance_rotation()(2))) * (m_cache.volumes_data[i].get_instance_position() - m_cache.dragging_center);
volume.set_instance_offset(m_cache.dragging_center + offset);
double z_diff = Geometry::rotation_diff_z(m_cache.volumes_data[i].get_instance_rotation(), new_rotation);
volume.set_instance_offset(m_cache.dragging_center + Eigen::AngleAxisd(z_diff, Vec3d::UnitZ()) * (m_cache.volumes_data[i].get_instance_position() - m_cache.dragging_center));
}
volume.set_instance_rotation(new_rotation);
object_instance_first[volume.object_idx()] = i;