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ENH: add paint-on support on vertical faces

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Add paint-on support on vertical faces of slender rods

Jira: Studio/STIDIO-970

Change-Id: If280b570a8076059b5583f385ba6517bf305723b
(cherry picked from commit 6832ee98ac146421c061fa90840c2751c3b3d875)
This commit is contained in:
MusangKing 2022-10-18 11:16:58 +08:00 committed by Lane.Wei
parent 13377992f7
commit 6f13d5cbf4
3 changed files with 24 additions and 24 deletions
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2
src/libslic3r/SupportMaterial.cpp
View file

@ -1513,7 +1513,7 @@ static inline Polygons detect_overhangs(
const coordf_t max_bridge_length = scale_(object_config.max_bridge_length.value);
const bool bridge_no_support = object_config.bridge_no_support.value;
if (layer_id == 0)
if (layer_id == 0)
{
// Don't fill in the holes. The user may apply a higher raft_expansion if one wants a better 1st layer adhesion.
overhang_polygons = to_polygons(layer.lslices);

41
src/libslic3r/TreeSupport.cpp
View file

@ -708,7 +708,7 @@ void TreeSupport::detect_object_overhangs()
if (m_object->tree_support_layer_count() >= m_object->layer_count())
return;
// Create Tree Support Layers
// Clear and create Tree Support Layers
m_object->clear_tree_support_layers();
m_object->clear_tree_support_preview_cache();
@ -721,11 +721,11 @@ void TreeSupport::detect_object_overhangs()
const coordf_t extrusion_width = config.line_width.value;
const coordf_t extrusion_width_scaled = scale_(extrusion_width);
const coordf_t max_bridge_length = scale_(config.max_bridge_length.value);
const bool bridge_no_support = max_bridge_length > 0;// config.bridge_no_support.value;
const bool bridge_no_support = max_bridge_length > 0;
const bool support_critical_regions_only = config.support_critical_regions_only.value;
const int enforce_support_layers = config.enforce_support_layers.value;
const double area_thresh_well_supported = SQ(scale_(6)); // min: 6x6=36mm^2
const double length_thresh_well_supported = scale_(6); // min: 6mm
const double area_thresh_well_supported = SQ(scale_(6));
const double length_thresh_well_supported = scale_(6);
static const double sharp_tail_max_support_height = 8.f;
// a region is considered well supported if the number of layers below it exceeds this threshold
const int thresh_layers_below = 10 / config.layer_height;
@ -822,20 +822,19 @@ void TreeSupport::detect_object_overhangs()
region2clusterInd.emplace(&region, regionClusters.size() - 1);
}
};
// main part of sharptail detections
has_sharp_tail = false;
if (std::set<SupportType>{stTreeAuto, stHybridAuto, stTree}.count(stype))// == stTreeAuto || stype == stHybridAuto || stype == stTree)
{
double threshold_rad = (config.support_threshold_angle.value < EPSILON ? 30 : config.support_threshold_angle.value+1) * M_PI / 180.;
ExPolygons regions_well_supported; // regions on buildplate or well supported
std::map<ExPolygon, int, ExPolygonComp> region_layers_below; // regions and the number of layers below
ExPolygons lower_overhang_dilated; // for small overhang
for (size_t layer_nr = 0; layer_nr < m_object->layer_count(); layer_nr++)
{
ExPolygons regions_well_supported;
std::map<ExPolygon, int, ExPolygonComp> region_layers_below;
ExPolygons lower_overhang_dilated;
for (size_t layer_nr = 0; layer_nr < m_object->layer_count(); layer_nr++){
if (m_object->print()->canceled())
break;
if (!is_auto && layer_nr > enforce_support_layers)
continue;
@ -873,7 +872,7 @@ void TreeSupport::detect_object_overhangs()
// normal overhang
ExPolygons lower_layer_offseted = offset_ex(lower_polys, support_offset_scaled, SUPPORT_SURFACES_OFFSET_PARAMETERS);
ExPolygons overhang_areas = std::move(diff_ex(curr_polys, lower_layer_offseted));
// overhang_areas = std::move(offset2_ex(overhang_areas, -0.1 * extrusion_width_scaled, 0.1 * extrusion_width_scaled));
overhang_areas.erase(std::remove_if(overhang_areas.begin(), overhang_areas.end(),
[extrusion_width_scaled](ExPolygon &area) { return offset_ex(area, -0.1 * extrusion_width_scaled).empty(); }),
overhang_areas.end());
@ -961,7 +960,7 @@ void TreeSupport::detect_object_overhangs()
// 2.4 if the area grows fast than threshold, it get connected to other part or
// it has a sharp slop and will be auto supported.
ExPolygons new_overhang_expolys = diff_ex({ expoly }, lower_layer_sharptails);
ExPolygons new_overhang_expolys = diff_ex({expoly}, lower_layer_sharptails);
if (!offset_ex(new_overhang_expolys, -5.0 * extrusion_width_scaled).empty()) {
is_sharp_tail = false;
break;
@ -1133,7 +1132,6 @@ void TreeSupport::detect_object_overhangs()
// if (erode1.empty() && !inter_with_others.empty())
// blockers[layer_nr].push_back(p_overhang->contour);
}
}
}
@ -1156,12 +1154,13 @@ void TreeSupport::detect_object_overhangs()
for (auto &area : ts_layer->overhang_areas) {
ts_layer->overhang_types.emplace(&area, TreeSupportLayer::Detected);
}
// enforcers
if (layer_nr < enforcers.size()) {
Polygons& enforcer = enforcers[layer_nr];
// coconut: enforcer can't do offset2_ex, otherwise faces with angle near 90 degrees can't have enforcers, which
// is not good. For example: tails of animals needs extra support except the lowest tip.
//enforcer = std::move(offset2_ex(enforcer, -0.1 * extrusion_width_scaled, 0.1 * extrusion_width_scaled));
enforcer = offset(enforcer, 0.1 * extrusion_width_scaled);
for (const Polygon& poly : enforcer) {
ts_layer->overhang_areas.emplace_back(poly);
ts_layer->overhang_types.emplace(&ts_layer->overhang_areas.back(), TreeSupportLayer::Enforced);
@ -1871,30 +1870,30 @@ void TreeSupport::generate_support_areas()
if (!tree_support_enable)
return;
std::vector<std::vector<Node*>> contact_nodes(m_object->layers().size()); //Generate empty layers to store the points in.
std::vector<std::vector<Node*>> contact_nodes(m_object->layers().size());
profiler.stage_start(STAGE_total);
// Generate overhang areas
profiler.stage_start(STAGE_DETECT_OVERHANGS);
m_object->print()->set_status(55, _L("Support: detect overhangs"));
detect_object_overhangs();
detect_object_overhangs(); // Entry of step#1;
profiler.stage_finish(STAGE_DETECT_OVERHANGS);
// Generate contact points of tree support
profiler.stage_start(STAGE_GENERATE_CONTACT_NODES);
m_object->print()->set_status(56, _L("Support: generate contact points"));
generate_contact_points(contact_nodes);
generate_contact_points(contact_nodes); // Entry of step#2;
profiler.stage_finish(STAGE_GENERATE_CONTACT_NODES);
//Drop nodes to lower layers.
profiler.stage_start(STAGE_DROP_DOWN_NODES);
m_object->print()->set_status(60, _L("Support: propagate branches"));
drop_nodes(contact_nodes);
drop_nodes(contact_nodes); // Entry of step#3;
profiler.stage_finish(STAGE_DROP_DOWN_NODES);
// Adjust support layer heights
adjust_layer_heights(contact_nodes);
adjust_layer_heights(contact_nodes); // Entry of step#4;
//Generate support areas.
profiler.stage_start(STAGE_DRAW_CIRCLES);

5
src/libslic3r/TriangleMeshSlicer.cpp
View file

@ -399,7 +399,7 @@ struct SlabLines {
std::vector<IntersectionLines> at_slice;
// Projections of triangle set boundary lines into layer below (for projection from the top)
// or into layer above (for projection from the bottom).
// In both cases the intersection liens are CCW oriented.
// In both cases the intersection lines are CCW oriented.
std::vector<IntersectionLines> between_slices;
};
@ -790,7 +790,8 @@ inline std::pair<SlabLines, SlabLines> slice_slabs_make_lines(
}
slice_facet_with_slabs<true>(vertices, indices, face_idx, neighbors, edge_ids, num_edges, zs, lines_top, lines_mutex_top);
}
if (bottom && (fo == FaceOrientation::Down || fo == FaceOrientation::Degenerate)) {
// BBS: add vertical faces option
if (bottom && (fo == FaceOrientation::Down || fo == FaceOrientation::Vertical || fo == FaceOrientation::Degenerate)) {
Vec3i neighbors = face_neighbors[face_idx];
// Reset neighborship of this triangle in case the other triangle is oriented backwards from this one.
for (int i = 0; i < 3; ++ i)