make fixed overlap levels for dynamic overhang speed

src/libslic3r/GCode.cpp

@@ -1,3 +1,4 @@
+#include "Config.hpp"
 #include "libslic3r.h"
 #include "GCode/ExtrusionProcessor.hpp"
 #include "I18N.hpp"
@@ -2870,12 +2871,15 @@ std::string GCode::_extrude(const ExtrusionPath &path, const std::string_view de
     bool                        variable_speed = false;
     std::vector<ProcessedPoint> new_points{};
     if (this->m_config.enable_dynamic_overhang_speeds && !this->on_first_layer() && path.role().is_perimeter()) {
+        std::vector<std::pair<int, ConfigOptionFloatOrPercent>> overhangs_with_speeds{
+            {0, m_config.overhang_speed_0},  {20, m_config.overhang_speed_1}, {40, m_config.overhang_speed_2},
+            {60, m_config.overhang_speed_3}, {80, m_config.overhang_speed_4},
+        };
         double external_perim_reference_speed = std::min(m_config.get_abs_value("external_perimeter_speed"),
                                                          std::min(EXTRUDER_CONFIG(filament_max_volumetric_speed) / path.mm3_per_mm,
                                                                   m_config.max_volumetric_speed.value / path.mm3_per_mm));
-        new_points     = m_extrusion_quality_estimator.estimate_extrusion_quality(path, m_config.overhang_overlap_levels,
-                                                                                  m_config.dynamic_overhang_speeds,
-                                                                                  external_perim_reference_speed, speed);
+        new_points = m_extrusion_quality_estimator.estimate_extrusion_quality(path, overhangs_with_speeds, external_perim_reference_speed,
+                                                                              speed);
         variable_speed = std::any_of(new_points.begin(), new_points.end(), [speed](const ProcessedPoint &p) { return p.speed != speed; });
     }
 

src/libslic3r/GCode/ExtrusionProcessor.hpp

@@ -257,26 +257,25 @@ public:
         next_layer_boundaries[object] = AABBTreeLines::LinesDistancer<Linef>{to_unscaled_linesf(layer->lslices)};
     }
 
-    std::vector<ProcessedPoint> estimate_extrusion_quality(const ExtrusionPath                &path,
-                                                           const ConfigOptionPercents         &overlaps,
-                                                           const ConfigOptionFloatsOrPercents &speeds,
-                                                           float                               ext_perimeter_speed,
-                                                           float                               original_speed)
+    std::vector<ProcessedPoint> estimate_extrusion_quality(const ExtrusionPath                                          &path,
+                                                           const std::vector<std::pair<int, ConfigOptionFloatOrPercent>> overhangs_w_speeds,
+                                                           float ext_perimeter_speed,
+                                                           float original_speed)
     {
-        size_t                               speed_sections_count = std::min(overlaps.values.size(), speeds.values.size());
-        float speed_base = ext_perimeter_speed > 0 ? ext_perimeter_speed : original_speed;
+        float                                speed_base = ext_perimeter_speed > 0 ? ext_perimeter_speed : original_speed;
         std::vector<std::pair<float, float>> speed_sections;
-        for (size_t i = 0; i < speed_sections_count; i++) {
-            float distance = path.width * (1.0 - (overlaps.get_at(i) / 100.0));
-            float speed    = speeds.get_at(i).percent ? (speed_base * speeds.get_at(i).value / 100.0) : speeds.get_at(i).value;
+        for (size_t i = 0; i < overhangs_w_speeds.size(); i++) {
+            float distance = path.width * (1.0 - (overhangs_w_speeds[i].first / 100.0));
+            float speed    = overhangs_w_speeds[i].second.percent ? (speed_base * overhangs_w_speeds[i].second.value / 100.0) :
+                                                                  overhangs_w_speeds[i].second.value;
             speed_sections.push_back({distance, speed});
         }
-        std::sort(speed_sections.begin(), speed_sections.end(),
-                  [](const std::pair<float, float> &a, const std::pair<float, float> &b) { 
-                    if (a.first == b.first) {
-                        return a.second > b.second;
-                    }
-                    return a.first < b.first; });
+        std::sort(speed_sections.begin(), speed_sections.end(), [](const std::pair<float, float> &a, const std::pair<float, float> &b) {
+            if (a.first == b.first) {
+                return a.second > b.second;
+            }
+            return a.first < b.first;
+        });
 
         std::pair<float, float> last_section{INFINITY, 0};
         for (auto &section : speed_sections) {

src/libslic3r/Preset.cpp

@@ -440,7 +440,7 @@ static std::vector<std::string> s_Preset_print_options {
     "fuzzy_skin", "fuzzy_skin_thickness", "fuzzy_skin_point_dist",
     "max_volumetric_extrusion_rate_slope_positive", "max_volumetric_extrusion_rate_slope_negative",
     "perimeter_speed", "small_perimeter_speed", "external_perimeter_speed", "infill_speed", "solid_infill_speed",
-    "enable_dynamic_overhang_speeds", "dynamic_overhang_speeds", "overhang_overlap_levels",
+    "enable_dynamic_overhang_speeds", "overhang_speed_0", "overhang_speed_1", "overhang_speed_2", "overhang_speed_3", "overhang_speed_4",
     "top_solid_infill_speed", "support_material_speed", "support_material_xy_spacing", "support_material_interface_speed",
     "bridge_speed", "gap_fill_speed", "gap_fill_enabled", "travel_speed", "travel_speed_z", "first_layer_speed", "first_layer_speed_over_raft", "perimeter_acceleration", "infill_acceleration",
     "external_perimeter_acceleration", "top_solid_infill_acceleration", "solid_infill_acceleration",

src/libslic3r/PrintConfig.cpp

@@ -534,36 +534,63 @@ void PrintConfigDef::init_fff_params()
     def             = this->add("enable_dynamic_overhang_speeds", coBool);
     def->label      = L("Enable dynamic overhang speeds");
     def->category   = L("Speed");
-    def->tooltip    = L("This setting enables dynamic speed control on overhangs.");
-    def->mode       = comAdvanced;
-    def->set_default_value(new ConfigOptionBool(false));
-
-    def             = this->add("overhang_overlap_levels", coPercents);
-    def->full_label = L("Overhang overlap levels");
-    def->category   = L("Speed");
-    def->tooltip    = L("Controls overhang levels, expressed as a percentage of overlap of the extrusion with the previous layer - "
+    def->tooltip    = L("This setting enables dynamic speed control on overhangs."
+                        "Controls overhang levels, expressed as a percentage of overlap of the extrusion with the previous layer - "
                         "100% represents full overlap - no overhang is present, while 0% represents full overhang (floating extrusion). "
                         "Each overhang level then corresponds with the overhang speed below. Speeds for overhang levels in between are "
                         "calculated via linear interpolation."
                         "If you set multiple different speeds for the same overhang level, only the largest speed is used. "
-                        );
-    def->sidetext   = L("%");
-    def->min        = 0;
-    def->max        = 100;
-    def->mode       = comAdvanced;
-    def->set_default_value(new ConfigOptionPercents({60, 40, 20, 0}));
-
-    def             = this->add("dynamic_overhang_speeds", coFloatsOrPercents);
-    def->full_label = L("Dynamic speed on overhangs");
-    def->category   = L("Speed");
-    def->tooltip    = L("This setting controls the speed on the overhang with the overlap value set above. "
+                        "This setting controls the speed on the overhang with the overlap value set above. "
                         "The speed of the extrusion is calculated as a linear interpolation of the speeds for higher and lower overlap. "
                         "If set as percentage, the speed is calculated over the external perimeter speed."
-                        );
+    );
+    def->mode       = comAdvanced;
+    def->set_default_value(new ConfigOptionBool(false));
+
+    def             = this->add("overhang_speed_0", coFloatOrPercent);
+    def->full_label = L("speed for 0\% overlap (bridge)");
+    def->category   = L("Speed");
+    def->tooltip    = L("Controls the speed for the corresponding extrusion overlap value.");
     def->sidetext   = L("mm/s or %");
     def->min        = 0;
     def->mode       = comAdvanced;
-    def->set_default_value(new ConfigOptionFloatsOrPercents({{25, false}, {20, false}, {15, false}, {15, false}}));
+    def->set_default_value(new ConfigOptionFloatOrPercent(15, false));
+
+    def             = this->add("overhang_speed_1", coFloatOrPercent);
+    def->full_label = L("speed for 20\% overlap");
+    def->category   = L("Speed");
+    def->tooltip    = L("Controls the speed for the corresponding extrusion overlap value.");
+    def->sidetext   = L("mm/s or %");
+    def->min        = 0;
+    def->mode       = comAdvanced;
+    def->set_default_value(new ConfigOptionFloatOrPercent(20, false));
+
+    def             = this->add("overhang_speed_2", coFloatOrPercent);
+    def->full_label = L("speed for 40\% overlap");
+    def->category   = L("Speed");
+    def->tooltip    = L("Controls the speed for the corresponding extrusion overlap value.");
+    def->sidetext   = L("mm/s or %");
+    def->min        = 0;
+    def->mode       = comAdvanced;
+    def->set_default_value(new ConfigOptionFloatOrPercent(25, false));
+
+    def             = this->add("overhang_speed_3", coFloatOrPercent);
+    def->full_label = L("speed for 60\% overlap");
+    def->category   = L("Speed");
+    def->tooltip    = L("Controls the speed for the corresponding extrusion overlap value.");
+    def->sidetext   = L("mm/s or %");
+    def->min        = 0;
+    def->mode       = comAdvanced;
+    def->set_default_value(new ConfigOptionFloatOrPercent(25, false));
+
+    def             = this->add("overhang_speed_4", coFloatOrPercent);
+    def->full_label = L("speed for 80\% overlap");
+    def->category   = L("Speed");
+    def->tooltip    = L("Controls the speed for the corresponding extrusion overlap value.");
+    def->sidetext   = L("mm/s or %");
+    def->min        = 0;
+    def->mode       = comAdvanced;
+    def->set_default_value(new ConfigOptionFloatOrPercent(25, false));
 
     def = this->add("brim_width", coFloat);
     def->label = L("Brim width");

src/libslic3r/PrintConfig.hpp

@@ -573,8 +573,11 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionFloatOrPercent,       external_perimeter_extrusion_width))
     ((ConfigOptionFloatOrPercent,       external_perimeter_speed))
     ((ConfigOptionBool,                 enable_dynamic_overhang_speeds))
-    ((ConfigOptionPercents,             overhang_overlap_levels))
-    ((ConfigOptionFloatsOrPercents,     dynamic_overhang_speeds))
+    ((ConfigOptionFloatOrPercent,       overhang_speed_0))
+    ((ConfigOptionFloatOrPercent,       overhang_speed_1))
+    ((ConfigOptionFloatOrPercent,       overhang_speed_2))
+    ((ConfigOptionFloatOrPercent,       overhang_speed_3))
+    ((ConfigOptionFloatOrPercent,       overhang_speed_4))
     ((ConfigOptionBool,                 external_perimeters_first))
     ((ConfigOptionBool,                 extra_perimeters))
     ((ConfigOptionBool,                 extra_perimeters_on_overhangs))

src/libslic3r/PrintObject.cpp

@@ -765,8 +765,11 @@ bool PrintObject::invalidate_state_by_config_options(
             || opt_key == "support_material_interface_speed"
             || opt_key == "bridge_speed"
             || opt_key == "enable_dynamic_overhang_speeds"
-            || opt_key == "overhang_overlap_levels"
-            || opt_key == "dynamic_overhang_speeds"
+            || opt_key == "overhang_speed_0"
+            || opt_key == "overhang_speed_1"
+            || opt_key == "overhang_speed_2"
+            || opt_key == "overhang_speed_3"
+            || opt_key == "overhang_speed_4"
             || opt_key == "external_perimeter_speed"
             || opt_key == "infill_speed"
             || opt_key == "perimeter_speed"

src/slic3r/GUI/ConfigManipulation.cpp

@@ -221,12 +221,11 @@ void ConfigManipulation::toggle_print_fff_options(DynamicPrintConfig* config)
     bool have_perimeters = config->opt_int("perimeters") > 0;
     for (auto el : { "extra_perimeters","extra_perimeters_on_overhangs", "ensure_vertical_shell_thickness", "thin_walls", "overhangs",
                     "seam_position","staggered_inner_seams", "external_perimeters_first", "external_perimeter_extrusion_width",
-                    "perimeter_speed", "small_perimeter_speed", "external_perimeter_speed", "enable_dynamic_overhang_speeds", "overhang_overlap_levels", "dynamic_overhang_speeds" })
+                    "perimeter_speed", "small_perimeter_speed", "external_perimeter_speed", "enable_dynamic_overhang_speeds"})
         toggle_field(el, have_perimeters);
 
-    for (size_t i = 0; i < 4; i++) {
-        toggle_field("overhang_overlap_levels#" + std::to_string(i), config->opt_bool("enable_dynamic_overhang_speeds"));
-        toggle_field("dynamic_overhang_speeds#" + std::to_string(i), config->opt_bool("enable_dynamic_overhang_speeds"));
+    for (size_t i = 0; i < 5; i++) {
+        toggle_field("overhang_speed_" + std::to_string(i), config->opt_bool("enable_dynamic_overhang_speeds"));
     }
 
     bool have_infill = config->option<ConfigOptionPercent>("fill_density")->value > 0;

src/slic3r/GUI/Search.cpp

@@ -98,10 +98,6 @@ void OptionsSearcher::append_options(DynamicPrintConfig* config, Preset::Type ty
             suffix_local = " " + _(suffix);
             suffix = " " + suffix;
         }
-        else if (gc.group == "Dynamic overhang speed" && id >= 0) {
-            suffix = " " + std::to_string(id+1);
-            suffix_local = suffix;
-        }
 
         if (!label.IsEmpty())
             options.emplace_back(Option{ boost::nowide::widen(key), type,

src/slic3r/GUI/Tab.cpp

@@ -1549,18 +1549,12 @@ void TabPrint::build()
         optgroup->append_single_option_line("ironing_speed");
 
         optgroup = page->new_optgroup(L("Dynamic overhang speed"));
-        auto append_option_line = [](ConfigOptionsGroupShp optgroup, std::string opt_key) {
-            auto option = optgroup->get_option(opt_key, 0);
-            auto line   = Line{option.opt.full_label, ""};
-            line.append_option(option);
-            line.append_option(optgroup->get_option(opt_key, 1));
-            line.append_option(optgroup->get_option(opt_key, 2));
-            line.append_option(optgroup->get_option(opt_key, 3));
-            optgroup->append_line(line);
-        };
         optgroup->append_single_option_line("enable_dynamic_overhang_speeds");
-	    append_option_line(optgroup,"overhang_overlap_levels");
-        append_option_line(optgroup,"dynamic_overhang_speeds");
+        optgroup->append_single_option_line("overhang_speed_0");
+        optgroup->append_single_option_line("overhang_speed_1");
+        optgroup->append_single_option_line("overhang_speed_2");
+        optgroup->append_single_option_line("overhang_speed_3");
+        optgroup->append_single_option_line("overhang_speed_4");
 
         optgroup = page->new_optgroup(L("Speed for non-print moves"));
         optgroup->append_single_option_line("travel_speed");