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ENH: tree support style default to Tree Hybrid 

1. tree support style default to Tree Hybrid
2. fix an assert bug with MedialAxis::build:
    assert(polyline.width.size() == polyline.points.size() * 2 - 2)
  This is caused by the incorrect clear function of ThickPolyline.

Change-Id: I8d6507ad366d253493e2749e0cbac8d3d837ee8a
(cherry picked from commit bd31e962c11e82005944bef40b17471075e79898)
This commit is contained in:
Arthur Tang 2023-03-18 15:53:13 +08:00 committed by Lane.Wei
parent d7364900dd
commit 617cb5490b
4 changed files with 16 additions and 13 deletions
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4
src/libslic3r/Polyline.hpp
View File

@ -234,6 +234,10 @@ public:
std::reverse(this->width.begin(), this->width.end());
std::swap(this->endpoints.first, this->endpoints.second);
}
void clear() {
Polyline::clear();
width.clear();
}
std::vector<coordf_t> width;
std::pair<bool,bool> endpoints;

2
src/libslic3r/PrintConfig.hpp
View File

@ -117,7 +117,7 @@ inline bool is_tree(SupportType stype)
};
inline bool is_tree_slim(SupportType type, SupportMaterialStyle style)
{
return is_tree(type) && (style==smsDefault || style==smsTreeSlim);
return is_tree(type) && style==smsTreeSlim;
};
inline bool is_auto(SupportType stype)
{

22
src/libslic3r/TreeSupport.cpp
View File

@ -15,7 +15,6 @@
#define _L(s) Slic3r::I18N::translate(s)
#define USE_PLAN_LAYER_HEIGHTS 1
#define HEIGHT_TO_SWITCH_INFILL_DIRECTION 30 // change infill direction every 20mm
#ifndef M_PI
#define M_PI 3.1415926535897932384626433832795
@ -686,9 +685,12 @@ TreeSupport::TreeSupport(PrintObject& object, const SlicingParameters &slicing_p
: m_object(&object), m_slicing_params(slicing_params), m_object_config(&object.config())
{
m_raft_layers = slicing_params.base_raft_layers + slicing_params.interface_raft_layers;
support_type = m_object_config->support_type;
support_style = m_object_config->support_style;
if (support_style == smsDefault)
support_style = smsTreeHybrid;
SupportMaterialPattern support_pattern = m_object_config->support_base_pattern;
if (m_object_config->support_style == smsTreeHybrid && support_pattern == smpDefault) support_pattern = smpRectilinear;
if (support_style == smsTreeHybrid && support_pattern == smpDefault) support_pattern = smpRectilinear;
m_support_params.base_fill_pattern =
support_pattern == smpLightning ? ipLightning :
support_pattern == smpHoneycomb ? ipHoneycomb :
@ -701,8 +703,7 @@ TreeSupport::TreeSupport(PrintObject& object, const SlicingParameters &slicing_p
ipConcentric :
(m_support_params.interface_density > 0.95 ? ipRectilinear : ipSupportBase);
m_support_params.support_extrusion_width = m_object_config->support_line_width.value > 0 ? m_object_config->support_line_width : m_object_config->line_width;
support_type = m_object_config->support_type;
is_slim = is_tree_slim(support_type, m_object_config->support_style);
is_slim = is_tree_slim(support_type, support_style);
MAX_BRANCH_RADIUS = 10.0;
tree_support_branch_diameter_angle = 5.0;//is_slim ? 10.0 : 5.0;
// by default tree support needs no infill, unless it's tree hybrid which contains normal nodes.
@ -915,7 +916,7 @@ void TreeSupport::detect_overhangs(bool detect_first_sharp_tail_only)
if (max_bridge_length > 0 && overhang_areas.size() > 0) {
// do not break bridge for normal part in TreeHybrid
bool break_bridge = !(config.support_style == smsTreeHybrid && area(overhang_areas) > m_support_params.thresh_big_overhang);
bool break_bridge = !(support_style == smsTreeHybrid && area(overhang_areas) > m_support_params.thresh_big_overhang);
m_object->remove_bridges_from_contacts(lower_layer, layer, extrusion_width_scaled, &overhang_areas, max_bridge_length, break_bridge);
}
@ -1503,9 +1504,6 @@ void TreeSupport::generate_toolpaths()
}
BoundingBox bbox_object(Point(-scale_(1.), -scale_(1.0)), Point(scale_(1.), scale_(1.)));
auto obj_size = m_object->size();
bool obj_is_vertical = obj_size.x() < obj_size.y();
int num_layers_to_change_infill_direction = int(HEIGHT_TO_SWITCH_INFILL_DIRECTION / object_config.layer_height.value); // change direction every 30mm
std::shared_ptr<Fill> filler_interface = std::shared_ptr<Fill>(Fill::new_from_type(m_support_params.contact_fill_pattern));
std::shared_ptr<Fill> filler_Roof1stLayer = std::shared_ptr<Fill>(Fill::new_from_type(ipRectilinear));
@ -1513,7 +1511,7 @@ void TreeSupport::generate_toolpaths()
filler_interface->set_bounding_box(bbox_object);
filler_Roof1stLayer->set_bounding_box(bbox_object);
filler_support->set_bounding_box(bbox_object);
filler_interface->angle = Geometry::deg2rad(object_config.support_angle.value + 90.);//(1 - obj_is_vertical) * M_PI_2;//((1-obj_is_vertical) + int(layer_id / num_layers_to_change_infill_direction)) * M_PI_2;;//layer_id % 2 ? 0 : M_PI_2;
filler_interface->angle = Geometry::deg2rad(object_config.support_angle.value + 90.);
filler_Roof1stLayer->angle = Geometry::deg2rad(object_config.support_angle.value + 90.);
// generate tree support tool paths
@ -1585,7 +1583,7 @@ void TreeSupport::generate_toolpaths()
// base_areas
filler_support->spacing = support_flow.spacing();
Flow flow = (layer_id == 0 && m_raft_layers == 0) ? m_object->print()->brim_flow() : support_flow;
if (layer_id>0 && area_group.dist_to_top < 10 && !with_infill && m_object_config->support_style!=smsTreeHybrid) {
if (layer_id>0 && area_group.dist_to_top < 10 && !with_infill && support_style!=smsTreeHybrid) {
if (area_group.dist_to_top < 5) // 1 wall at the top <5mm
make_perimeter_and_inner_brim(ts_layer->support_fills.entities, poly, 1, flow, erSupportMaterial);
else // at least 2 walls for range [5,10)
@ -3325,7 +3323,7 @@ void TreeSupport::generate_contact_points(std::vector<std::vector<TreeSupport::N
for (const ExPolygon &overhang_part : overhang)
{
BoundingBox overhang_bounds = get_extents(overhang_part);
if (config.support_style.value==smsTreeHybrid && overhang_part.area() > m_support_params.thresh_big_overhang) {
if (support_style==smsTreeHybrid && overhang_part.area() > m_support_params.thresh_big_overhang) {
Point candidate = overhang_bounds.center();
if (!overhang_part.contains(candidate))
move_inside_expoly(overhang_part, candidate);

1
src/libslic3r/TreeSupport.hpp
View File

@ -381,6 +381,7 @@ public:
bool has_sharp_tails = false;
bool has_cantilever = false;
SupportType support_type;
SupportMaterialStyle support_style;
std::unique_ptr<FillLightning::Generator> generator;
std::unordered_map<double, size_t> printZ_to_lightninglayer;