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Group hollowing result (including grid) into one struct

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This commit is contained in:
tamasmeszaros 2020-12-17 16:38:04 +01:00
parent e57eca0289
commit 82954ba715
7 changed files with 133 additions and 67 deletions
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104
src/libslic3r/SLA/Hollowing.cpp
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@ -26,11 +26,36 @@ inline void _scale(S s, TriangleMesh &m) { m.scale(float(s)); }
template<class S, class = FloatingOnly<S>>
inline void _scale(S s, Contour3D &m) { for (auto &p : m.points) p *= s; }
static TriangleMesh _generate_interior(const TriangleMesh &mesh,
const JobController &ctl,
double min_thickness,
double voxel_scale,
double closing_dist)
struct Interior {
TriangleMesh mesh;
openvdb::FloatGrid::Ptr gridptr;
double closing_distance = 0.;
double thickness = 0.;
double voxel_scale = 1.;
double nb_in = 3.;
double nb_out = 3.;
};
void InteriorDeleter::operator()(Interior *p)
{
delete p;
}
TriangleMesh &get_mesh(Interior &interior)
{
return interior.mesh;
}
const TriangleMesh &get_mesh(const Interior &interior)
{
return interior.mesh;
}
static InteriorPtr generate_interior_verbose(const TriangleMesh & mesh,
const JobController &ctl,
double min_thickness,
double voxel_scale,
double closing_dist)
{
double offset = voxel_scale * min_thickness;
double D = voxel_scale * closing_dist;
@ -64,22 +89,30 @@ static TriangleMesh _generate_interior(const TriangleMesh &mesh,
else ctl.statuscb(70, L("Hollowing"));
double adaptivity = 0.;
InteriorPtr interior = InteriorPtr{new Interior{}};
auto omesh = grid_to_mesh(*gridptr, iso_surface, adaptivity);
interior->mesh = grid_to_mesh(*gridptr, iso_surface, adaptivity);
interior->gridptr = gridptr;
if (ctl.stopcondition()) return {};
else ctl.statuscb(100, L("Hollowing"));
return omesh;
interior->closing_distance = D;
interior->thickness = offset;
interior->voxel_scale = voxel_scale;
interior->nb_in = narrowb;
interior->nb_out = narrowb;
return interior;
}
std::unique_ptr<TriangleMesh> generate_interior(const TriangleMesh & mesh,
const HollowingConfig &hc,
const JobController & ctl)
InteriorPtr generate_interior(const TriangleMesh & mesh,
const HollowingConfig &hc,
const JobController & ctl)
{
static const double MIN_OVERSAMPL = 3.;
static const double MAX_OVERSAMPL = 8.;
// I can't figure out how to increase the grid resolution through openvdb
// API so the model will be scaled up before conversion and the result
// scaled down. Voxels have a unit size. If I set voxelSize smaller, it
@ -88,26 +121,29 @@ std::unique_ptr<TriangleMesh> generate_interior(const TriangleMesh & mesh,
//
// max 8x upscale, min is native voxel size
auto voxel_scale = MIN_OVERSAMPL + (MAX_OVERSAMPL - MIN_OVERSAMPL) * hc.quality;
auto meshptr = std::make_unique<TriangleMesh>(
_generate_interior(mesh, ctl, hc.min_thickness, voxel_scale,
hc.closing_distance));
if (meshptr && !meshptr->empty()) {
InteriorPtr interior =
generate_interior_verbose(mesh, ctl, hc.min_thickness, voxel_scale,
hc.closing_distance);
if (interior && !interior->mesh.empty()) {
// This flips the normals to be outward facing...
meshptr->require_shared_vertices();
indexed_triangle_set its = std::move(meshptr->its);
interior->mesh.require_shared_vertices();
indexed_triangle_set its = std::move(interior->mesh.its);
Slic3r::simplify_mesh(its);
// flip normals back...
for (stl_triangle_vertex_indices &ind : its.indices)
std::swap(ind(0), ind(2));
*meshptr = Slic3r::TriangleMesh{its};
interior->mesh = Slic3r::TriangleMesh{its};
interior->mesh.repaired = true;
interior->mesh.require_shared_vertices();
}
return meshptr;
return interior;
}
Contour3D DrainHole::to_mesh() const
@ -269,12 +305,22 @@ void cut_drainholes(std::vector<ExPolygons> & obj_slices,
obj_slices[i] = diff_ex(obj_slices[i], hole_slices[i]);
}
void hollow_mesh(TriangleMesh &mesh, const HollowingConfig &cfg)
void hollow_mesh(TriangleMesh &mesh, const HollowingConfig &cfg, int flags)
{
std::unique_ptr<Slic3r::TriangleMesh> inter_ptr =
Slic3r::sla::generate_interior(mesh);
InteriorPtr interior = generate_interior(mesh, cfg, JobController{});
if (!interior) return;
if (inter_ptr) mesh.merge(*inter_ptr);
hollow_mesh(mesh, *interior, flags);
}
void hollow_mesh(TriangleMesh &mesh, const Interior &interior, int flags)
{
if (mesh.empty() || interior.mesh.empty()) return;
// if (flags & hfRemoveInsideTriangles && interior.gridptr)
// erase_inside_triangles_2(mesh, interior);
mesh.merge(interior.mesh);
mesh.require_shared_vertices();
}