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Holes are were not drilled in the right orientation.

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This change seemingly fixes the issue.
This commit is contained in:
tamasmeszaros 2022-11-04 13:34:31 +01:00
parent 28ffdcc391
commit c28a00ae04
1 changed files with 13 additions and 14 deletions
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27
src/libslic3r/SLA/Hollowing.cpp
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@ -118,9 +118,9 @@ indexed_triangle_set DrainHole::to_mesh() const
{
auto r = double(radius);
auto h = double(height);
indexed_triangle_set hole = sla::cylinder(r, h, steps);
indexed_triangle_set hole = its_make_cylinder(r, h); //sla::cylinder(r, h, steps);
Eigen::Quaternionf q;
q.setFromTwoVectors(Vec3f{0.f, 0.f, 1.f}, normal);
q.setFromTwoVectors(Vec3f::UnitZ(), normal);
for(auto& p : hole.vertices) p = q * p + pos;
return hole;
@ -692,24 +692,23 @@ DrainHoles transformed_drainhole_points(const ModelObject &mo,
const Transform3d &trafo)
{
auto pts = mo.sla_drain_holes;
const Transform3d& vol_trafo = mo.volumes.front()->get_transformation().get_matrix();
const Geometry::Transformation trans(trafo * vol_trafo);
const Transform3f& tr = trans.get_matrix().cast<float>();
const Vec3f sc = trans.get_scaling_factor().cast<float>();
// const Transform3d& vol_trafo = mo.volumes.front()->get_transformation().get_matrix();
const Geometry::Transformation trans(trafo /** vol_trafo*/);
const Transform3d& tr = trans.get_matrix();
for (sla::DrainHole &hl : pts) {
hl.pos = tr * hl.pos;
hl.normal = tr * hl.normal - tr.translation();
Vec3d pos = hl.pos.cast<double>();
Vec3d nrm = hl.normal.cast<double>();
// The normal scales as a covector (and we must also
// undo the damage already done).
hl.normal = Vec3f(hl.normal(0)/(sc(0)*sc(0)),
hl.normal(1)/(sc(1)*sc(1)),
hl.normal(2)/(sc(2)*sc(2)));
pos = tr * pos;
nrm = tr * nrm - tr.translation();
// Now shift the hole a bit above the object and make it deeper to
// compensate for it. This is to avoid problems when the hole is placed
// on (nearly) flat surface.
hl.pos -= hl.normal.normalized() * sla::HoleStickOutLength;
pos -= nrm.normalized() * sla::HoleStickOutLength;
hl.pos = pos.cast<float>();
hl.normal = nrm.cast<float>();
hl.height += sla::HoleStickOutLength;
}