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Merge branch 'master' of https://github.com/prusa3d/Slic3r into et_copy_and_paste

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This commit is contained in:
Enrico Turri 2019-04-16 10:11:40 +02:00
commit c4978817f3
10 changed files with 121 additions and 24 deletions
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1
src/libslic3r/Model.cpp
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@ -1189,6 +1189,7 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
volume->mesh.transform(instance_matrix * volume_matrix, true);
// Perform cut
volume->mesh.require_shared_vertices(); // TriangleMeshSlicer needs this
TriangleMeshSlicer tms(&volume->mesh);
tms.cut(float(z), &upper_mesh, &lower_mesh);

2
src/libslic3r/PrintObject.cpp
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@ -1813,6 +1813,7 @@ std::vector<ExPolygons> PrintObject::_slice_volumes(const std::vector<float> &z,
TriangleMeshSlicer mslicer;
const Print *print = this->print();
auto callback = TriangleMeshSlicer::throw_on_cancel_callback_type([print](){print->throw_if_canceled();});
mesh.require_shared_vertices(); // TriangleMeshSlicer needs this
mslicer.init(&mesh, callback);
mslicer.slice(z, float(m_config.slice_closing_radius.value), &layers, callback);
m_print->throw_if_canceled();
@ -1840,6 +1841,7 @@ std::vector<ExPolygons> PrintObject::_slice_volume(const std::vector<float> &z,
TriangleMeshSlicer mslicer;
const Print *print = this->print();
auto callback = TriangleMeshSlicer::throw_on_cancel_callback_type([print](){print->throw_if_canceled();});
mesh.require_shared_vertices(); // TriangleMeshSlicer needs this
mslicer.init(&mesh, callback);
mslicer.slice(z, float(m_config.slice_closing_radius.value), &layers, callback);
m_print->throw_if_canceled();

1
src/libslic3r/SLA/SLABasePool.cpp
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@ -552,6 +552,7 @@ void base_plate(const TriangleMesh &mesh, ExPolygons &output, float h,
float layerh, ThrowOnCancel thrfn)
{
TriangleMesh m = mesh;
m.require_shared_vertices(); // TriangleMeshSlicer needs this
TriangleMeshSlicer slicer(&m);
auto bb = mesh.bounding_box();

6
src/libslic3r/SLA/SLASupportTree.cpp
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@ -817,6 +817,10 @@ public:
meshcache = mesh(merged);
// The mesh will be passed by const-pointer to TriangleMeshSlicer,
// which will need this.
meshcache.require_shared_vertices();
// TODO: Is this necessary?
//meshcache.repair();
@ -2231,6 +2235,7 @@ SlicedSupports SLASupportTree::slice(float layerh, float init_layerh) const
TriangleMesh fullmesh = m_impl->merged_mesh();
fullmesh.merge(get_pad());
fullmesh.require_shared_vertices(); // TriangleMeshSlicer needs this
TriangleMeshSlicer slicer(&fullmesh);
SlicedSupports ret;
slicer.slice(heights, 0.f, &ret, get().ctl().cancelfn);
@ -2243,6 +2248,7 @@ SlicedSupports SLASupportTree::slice(const std::vector<float> &heights,
{
TriangleMesh fullmesh = m_impl->merged_mesh();
fullmesh.merge(get_pad());
fullmesh.require_shared_vertices(); // TriangleMeshSlicer needs this
TriangleMeshSlicer slicer(&fullmesh);
SlicedSupports ret;
slicer.slice(heights, cr, &ret, get().ctl().cancelfn);

1
src/libslic3r/SLAPrint.cpp
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@ -706,6 +706,7 @@ void SLAPrint::process()
po.m_model_height_levels.emplace_back(it->slice_level());
}
mesh.require_shared_vertices(); // TriangleMeshSlicer needs this
TriangleMeshSlicer slicer(&mesh);
po.m_model_slices.clear();

6
src/libslic3r/TriangleMesh.cpp
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@ -607,10 +607,12 @@ void TriangleMesh::require_shared_vertices()
BOOST_LOG_TRIVIAL(trace) << "TriangleMeshSlicer::require_shared_vertices - end";
}
void TriangleMeshSlicer::init(TriangleMesh *_mesh, throw_on_cancel_callback_type throw_on_cancel)
void TriangleMeshSlicer::init(const TriangleMesh *_mesh, throw_on_cancel_callback_type throw_on_cancel)
{
mesh = _mesh;
_mesh->require_shared_vertices();
if (! mesh->has_shared_vertices())
throw std::invalid_argument("TriangleMeshSlicer was passed a mesh without shared vertices.");
throw_on_cancel();
facets_edges.assign(_mesh->stl.stats.number_of_facets * 3, -1);
v_scaled_shared.assign(_mesh->stl.v_shared, _mesh->stl.v_shared + _mesh->stl.stats.shared_vertices);

12
src/libslic3r/TriangleMesh.hpp
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@ -67,18 +67,17 @@ public:
TriangleMesh convex_hull_3d() const;
void reset_repair_stats();
bool needed_repair() const;
void require_shared_vertices();
bool has_shared_vertices() const { return stl.v_shared != NULL; }
size_t facets_count() const { return this->stl.stats.number_of_facets; }
bool empty() const { return this->facets_count() == 0; }
bool is_splittable() const;
stl_file stl;
bool repaired;
private:
void require_shared_vertices();
std::deque<uint32_t> find_unvisited_neighbors(std::vector<unsigned char> &facet_visited) const;
friend class TriangleMeshSlicer;
};
enum FacetEdgeType {
@ -159,9 +158,8 @@ class TriangleMeshSlicer
public:
typedef std::function<void()> throw_on_cancel_callback_type;
TriangleMeshSlicer() : mesh(nullptr) {}
// Not quite nice, but the constructor and init() methods require non-const mesh pointer to be able to call mesh->require_shared_vertices()
TriangleMeshSlicer(TriangleMesh* mesh) { this->init(mesh, [](){}); }
void init(TriangleMesh *mesh, throw_on_cancel_callback_type throw_on_cancel);
TriangleMeshSlicer(const TriangleMesh* mesh) { this->init(mesh, [](){}); }
void init(const TriangleMesh *mesh, throw_on_cancel_callback_type throw_on_cancel);
void slice(const std::vector<float> &z, std::vector<Polygons>* layers, throw_on_cancel_callback_type throw_on_cancel) const;
void slice(const std::vector<float> &z, const float closing_radius, std::vector<ExPolygons>* layers, throw_on_cancel_callback_type throw_on_cancel) const;
enum FacetSliceType {

2
src/slic3r/GUI/GLCanvas3D.cpp
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@ -3681,7 +3681,7 @@ void GLCanvas3D::_render_objects() const
m_volumes.set_clipping_plane(m_camera_clipping_plane.get_data());
m_shader.start_using();
if (m_picking_enabled && m_layers_editing.is_enabled() && (m_layers_editing.last_object_id != -1) && (m_layers_editing.object_max_z() > 0.0f)) {
if (m_picking_enabled && !m_gizmos.is_dragging() && m_layers_editing.is_enabled() && (m_layers_editing.last_object_id != -1) && (m_layers_editing.object_max_z() > 0.0f)) {
int object_id = m_layers_editing.last_object_id;
m_volumes.render_VBOs(GLVolumeCollection::Opaque, false, m_camera.get_view_matrix(), [object_id](const GLVolume &volume) {
// Which volume to paint without the layer height profile shader?

105
src/slic3r/GUI/Gizmos/GLGizmoSlaSupports.cpp
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@ -51,6 +51,9 @@ void GLGizmoSlaSupports::set_sla_support_data(ModelObject* model_object, const S
return;
}
if (m_model_object != model_object)
m_print_object_idx = -1;
m_model_object = model_object;
m_active_instance = selection.get_instance_idx();
@ -111,32 +114,92 @@ void GLGizmoSlaSupports::render_clipping_plane(const Selection& selection, const
if (m_clipping_plane_distance == 0.f)
return;
// First cache instance transformation to be used later.
const GLVolume* vol = selection.get_volume(*selection.get_volume_idxs().begin());
Transform3f instance_matrix = vol->get_instance_transformation().get_matrix().cast<float>();
Transform3f instance_matrix_no_translation_no_scaling = vol->get_instance_transformation().get_matrix(true,false,true).cast<float>();
Vec3f scaling = vol->get_instance_scaling_factor().cast<float>();
Vec3d instance_offset = vol->get_instance_offset();
// Calculate distance from mesh origin to the clipping plane (in mesh coordinates).
Vec3f up_noscale = instance_matrix_no_translation_no_scaling.inverse() * direction_to_camera.cast<float>();
Vec3f up = Vec3f(up_noscale(0)*scaling(0), up_noscale(1)*scaling(1), up_noscale(2)*scaling(2));
float height_mesh = (m_active_instance_bb_radius - m_clipping_plane_distance * 2*m_active_instance_bb_radius) * (up_noscale.norm()/up.norm());
// Get transformation of the supports and calculate how far from its origin the clipping plane is.
Transform3d supports_trafo = Transform3d::Identity();
supports_trafo = supports_trafo.rotate(Eigen::AngleAxisd(vol->get_instance_rotation()(2), Vec3d::UnitZ()));
Vec3f up_supports = (supports_trafo.inverse() * direction_to_camera).cast<float>();
supports_trafo = supports_trafo.pretranslate(Vec3d(instance_offset(0), instance_offset(1), vol->get_sla_shift_z()));
// Instance and supports origin do not coincide, so the following is quite messy:
float height_supports = height_mesh * (up.norm() / up_supports.norm()) + instance_offset(2) * (direction_to_camera(2) / direction_to_camera.norm());
// In case either of these was recently changed, the cached triangulated ExPolygons are invalid now.
// We are gonna recalculate them both for the object and for the support structures.
if (m_clipping_plane_distance != m_old_clipping_plane_distance
|| m_old_direction_to_camera != direction_to_camera) {
std::vector<ExPolygons> list_of_expolys;
m_old_direction_to_camera = direction_to_camera;
m_old_clipping_plane_distance = m_clipping_plane_distance;
// Now initialize the TMS for the object, perform the cut and save the result.
if (! m_tms) {
m_tms.reset(new TriangleMeshSlicer);
m_tms->init(const_cast<TriangleMesh*>(&m_mesh), [](){});
m_tms->init(m_mesh, [](){});
}
std::vector<ExPolygons> list_of_expolys;
m_tms->set_up_direction(up);
m_tms->slice(std::vector<float>{height_mesh}, 0.f, &list_of_expolys, [](){});
m_triangles = triangulate_expolygons_2f(list_of_expolys[0]);
m_old_direction_to_camera = direction_to_camera;
m_old_clipping_plane_distance = m_clipping_plane_distance;
// Next, ask the backend if supports are already calculated. If so, we are gonna cut them too.
// First we need a pointer to the respective SLAPrintObject. The index into objects vector is
// cached so we don't have todo it on each render. We only search for the po if needed:
if (m_print_object_idx < 0 || (int)m_parent.sla_print()->objects().size() != m_print_objects_count) {
m_print_objects_count = m_parent.sla_print()->objects().size();
m_print_object_idx = -1;
for (const SLAPrintObject* po : m_parent.sla_print()->objects()) {
++m_print_object_idx;
if (po->model_object()->id() == m_model_object->id())
break;
}
}
if (m_print_object_idx >= 0) {
const SLAPrintObject* print_object = m_parent.sla_print()->objects()[m_print_object_idx];
if (print_object->is_step_done(slaposSupportTree)) {
// If the supports are already calculated, save the timestamp of the respective step
// so we can later tell they were recalculated.
size_t timestamp = print_object->step_state_with_timestamp(slaposSupportTree).timestamp;
if (!m_supports_tms || (int)timestamp != m_old_timestamp) {
// The timestamp has changed - stash the mesh and initialize the TMS.
m_supports_mesh = &print_object->support_mesh();
m_supports_tms.reset(new TriangleMeshSlicer);
// The mesh should already have the shared vertices calculated.
m_supports_tms->init(m_supports_mesh, [](){});
m_old_timestamp = timestamp;
}
// The TMS is initialized - let's do the cutting:
list_of_expolys.clear();
m_supports_tms->set_up_direction(up_supports);
m_supports_tms->slice(std::vector<float>{height_supports}, 0.f, &list_of_expolys, [](){});
m_supports_triangles = triangulate_expolygons_2f(list_of_expolys[0]);
}
else {
// The supports are not valid. We better dump the cached data.
m_supports_tms.reset();
m_supports_triangles.clear();
}
}
}
// At this point we have the triangulated cuts for both the object and supports - let's render.
::glColor3f(1.0f, 0.37f, 0.0f);
if (! m_triangles.empty()) {
::glPushMatrix();
::glTranslated(0.0, 0.0, m_z_shift);
@ -146,11 +209,26 @@ void GLGizmoSlaSupports::render_clipping_plane(const Selection& selection, const
Eigen::AngleAxisf aa(q);
::glRotatef(aa.angle() * (180./M_PI), aa.axis()(0), aa.axis()(1), aa.axis()(2));
::glTranslatef(0.f, 0.f, -0.001f); // to make sure the cut is safely beyond the near clipping plane
::glColor3f(1.0f, 0.37f, 0.0f);
::glBegin(GL_TRIANGLES);
::glColor3f(1.0f, 0.37f, 0.0f);
for (const Vec2f& point : m_triangles)
::glVertex3f(point(0), point(1), height_mesh);
::glEnd();
::glPopMatrix();
}
if (! m_supports_triangles.empty()) {
::glPushMatrix();
::glMultMatrixd(supports_trafo.data());
Eigen::Quaternionf q;
q.setFromTwoVectors(Vec3f::UnitZ(), up_supports);
Eigen::AngleAxisf aa(q);
::glRotatef(aa.angle() * (180./M_PI), aa.axis()(0), aa.axis()(1), aa.axis()(2));
::glTranslatef(0.f, 0.f, -0.001f); // to make sure the cut is safely beyond the near clipping plane
::glBegin(GL_TRIANGLES);
for (const Vec2f& point : m_supports_triangles)
::glVertex3f(point(0), point(1), height_supports);
::glEnd();
::glPopMatrix();
}
@ -332,9 +410,12 @@ void GLGizmoSlaSupports::update_mesh()
wxBusyCursor wait;
Eigen::MatrixXf& V = m_V;
Eigen::MatrixXi& F = m_F;
// We rely on SLA model object having a single volume,
// this way we can use that mesh directly.
// This mesh does not account for the possible Z up SLA offset.
m_mesh = m_model_object->raw_mesh();
const stl_file& stl = m_mesh.stl;
m_mesh = &m_model_object->volumes.front()->mesh;
const_cast<TriangleMesh*>(m_mesh)->require_shared_vertices(); // TriangleMeshSlicer needs this
const stl_file& stl = m_mesh->stl;
V.resize(3 * stl.stats.number_of_facets, 3);
F.resize(stl.stats.number_of_facets, 3);
for (unsigned int i=0; i<stl.stats.number_of_facets; ++i) {
@ -972,12 +1053,12 @@ void GLGizmoSlaSupports::on_set_state()
m_editing_mode = false; // so it is not active next time the gizmo opens
m_editing_mode_cache.clear();
m_clipping_plane_distance = 0.f;
// Release copy of the mesh, triangle slicer and the AABB spatial search structure.
m_mesh.clear();
// Release triangle mesh slicer and the AABB spatial search structure.
m_AABB.deinit();
m_V = Eigen::MatrixXf();
m_F = Eigen::MatrixXi();
m_tms.reset(nullptr);
m_tms.reset();
m_supports_tms.reset();
});
}
m_old_state = m_state;

9
src/slic3r/GUI/Gizmos/GLGizmoSlaSupports.hpp
View file

@ -36,8 +36,13 @@ private:
Eigen::MatrixXf m_V; // vertices
Eigen::MatrixXi m_F; // facets indices
igl::AABB<Eigen::MatrixXf,3> m_AABB;
TriangleMesh m_mesh;
const TriangleMesh* m_mesh;
mutable const TriangleMesh* m_supports_mesh;
mutable std::vector<Vec2f> m_triangles;
mutable std::vector<Vec2f> m_supports_triangles;
mutable int m_old_timestamp = -1;
mutable int m_print_object_idx = -1;
mutable int m_print_objects_count = -1;
class CacheEntry {
public:
@ -79,7 +84,6 @@ private:
bool m_old_editing_state = false; // To keep track of whether the user toggled between the modes (needed for imgui refreshes).
float m_new_point_head_diameter; // Size of a new point.
float m_minimal_point_distance = 20.f;
float m_density = 100.f;
mutable std::vector<CacheEntry> m_editing_mode_cache; // a support point and whether it is currently selected
float m_clipping_plane_distance = 0.f;
mutable float m_old_clipping_plane_distance = 0.f;
@ -101,6 +105,7 @@ private:
int m_canvas_height;
mutable std::unique_ptr<TriangleMeshSlicer> m_tms;
mutable std::unique_ptr<TriangleMeshSlicer> m_supports_tms;
std::vector<const ConfigOption*> get_config_options(const std::vector<std::string>& keys) const;
bool is_point_clipped(const Vec3d& point, const Vec3d& direction_to_camera) const;