Thin wall improvements (v3)

lib/Slic3r/GUI/PresetEditor.pm

@@ -439,7 +439,8 @@ sub options {
         adaptive_slicing adaptive_slicing_quality match_horizontal_surfaces
         perimeters spiral_vase
         top_solid_layers min_shell_thickness min_top_bottom_shell_thickness bottom_solid_layers
-        extra_perimeters avoid_crossing_perimeters thin_walls overhangs
+        extra_perimeters avoid_crossing_perimeters 
+        thin_walls thin_walls_min_width thin_walls_overlap overhangs
         seam_position external_perimeters_first
         fill_density fill_pattern top_infill_pattern bottom_infill_pattern fill_gaps
         infill_every_layers infill_only_where_needed
@@ -540,7 +541,13 @@ sub build {
             my $optgroup = $page->new_optgroup('Quality (slower slicing)');
             $optgroup->append_single_option_line('extra_perimeters');
             $optgroup->append_single_option_line('avoid_crossing_perimeters');
-            $optgroup->append_single_option_line('thin_walls');
+            my $line = Slic3r::GUI::OptionsGroup::Line->new(
+                label => 'Detect thin walls',
+            );
+            $line->append_option($optgroup->get_option('thin_walls'));
+            $line->append_option($optgroup->get_option('thin_walls_min_width'));
+            $line->append_option($optgroup->get_option('thin_walls_overlap'));
+            $optgroup->append_line($line);
             $optgroup->append_single_option_line('overhangs');
         }
         {
@@ -888,8 +895,9 @@ sub _update {
     my $have_perimeters = ($config->perimeters > 0) || ($config->min_shell_thickness > 0);
     if (any { /$opt_key/ } qw(all_keys perimeters)) {
         $self->get_field($_)->toggle($have_perimeters)
-            for qw(extra_perimeters thin_walls overhangs seam_position external_perimeters_first
-                    external_perimeter_extrusion_width
+            for qw(extra_perimeters thin_walls thin_walls_min_width thin_walls_overlap
+                    overhangs seam_position 
+                    external_perimeters_first external_perimeter_extrusion_width
                     perimeter_speed small_perimeter_speed external_perimeter_speed);
     }
 
@@ -975,6 +983,10 @@ sub _update {
     $self->get_field($_)->toggle($have_support_material && $have_support_interface)
         for qw(support_material_interface_spacing support_material_interface_extruder
             support_material_interface_speed);
+
+    # thin walls settigns only when thins walls is activated
+    $self->get_field($_)->toggle($config->thin_walls)
+        for qw(thin_walls_min_width thin_walls_overlap);
 
     $self->get_field('perimeter_extrusion_width')->toggle($have_perimeters || $have_skirt || $have_brim);
     $self->get_field('support_material_extruder')->toggle($have_support_material || $have_skirt);

src/CMakeLists.txt

@@ -204,6 +204,7 @@ add_library(libslic3r STATIC
     ${LIBDIR}/libslic3r/LayerHeightSpline.cpp
     ${LIBDIR}/libslic3r/Line.cpp
     ${LIBDIR}/libslic3r/Log.cpp
+    ${LIBDIR}/libslic3r/MedialAxis.cpp
     ${LIBDIR}/libslic3r/Model.cpp
     ${LIBDIR}/libslic3r/MotionPlanner.cpp
     ${LIBDIR}/libslic3r/MultiPoint.cpp
@@ -316,6 +317,7 @@ set(SLIC3R_TEST_SOURCES
     ${TESTDIR}/libslic3r/test_printobject.cpp
     ${TESTDIR}/libslic3r/test_skirt_brim.cpp
     ${TESTDIR}/libslic3r/test_test_data.cpp
+    ${TESTDIR}/libslic3r/test_thin.cpp
     ${TESTDIR}/libslic3r/test_transformationmatrix.cpp
     ${TESTDIR}/libslic3r/test_trianglemesh.cpp
     ${TESTDIR}/libslic3r/test_extrusion_entity.cpp

src/GUI/Dialogs/PresetEditor.hpp

@@ -143,7 +143,8 @@ class PrintEditor : public PresetEditor {
             "adaptive_slicing"s, "adaptive_slicing_quality"s, "match_horizontal_surfaces"s,
             "perimeters"s, "spiral_vase"s,
             "top_solid_layers"s, "bottom_solid_layers"s,
-            "extra_perimeters"s, "avoid_crossing_perimeters"s, "thin_walls"s, "overhangs"s,
+            "extra_perimeters"s, "avoid_crossing_perimeters"s, 
+            "thin_walls"s, "thin_walls_min_width"s, "thin_walls_overlap"s, "overhangs"s,
             "seam_position"s, "external_perimeters_first"s,
             "fill_density"s, "fill_pattern"s, "top_infill_pattern"s, "bottom_infill_pattern"s, "fill_gaps"s,
             "infill_every_layers"s, "infill_only_where_needed"s,

src/test/libslic3r/test_fill.cpp

@@ -421,6 +421,7 @@ bool test_if_solid_surface_filled(const ExPolygon& expolygon, double flow_spacin
     Flow flow(flow_spacing, 0.4, flow_spacing);
 
     filler->min_spacing = flow.spacing();
+    filler->density = density;
 
     Polylines paths {filler->fill_surface(surface)};
 

src/test/libslic3r/test_flow.cpp

@@ -93,10 +93,10 @@ SCENARIO(" Bridge flow specifics.", "[!mayfail]") {
 SCENARIO("Flow: Flow math for non-bridges", "[!mayfail]") {
     GIVEN("Nozzle Diameter of 0.4, a desired width of 1mm and layer height of 0.5") {
         auto width {ConfigOptionFloatOrPercent(1.0, false)};
-        float spacing {0.4};
-        float nozzle_diameter {0.4};
-        float bridge_flow {1.0};
-        float layer_height {0.5};
+        float spacing {0.4f};
+        float nozzle_diameter {0.4f};
+        float bridge_flow {1.0f};
+        float layer_height {0.5f};
 
         // Spacing for non-bridges is has some overlap
         THEN("External perimeter flow has spacing fixed to 1.1*nozzle_diameter") {
@@ -117,10 +117,10 @@ SCENARIO("Flow: Flow math for non-bridges", "[!mayfail]") {
     }
     /// Check the min/max
     GIVEN("Nozzle Diameter of 0.25") {
-        float spacing {0.4};
-        float nozzle_diameter {0.25};
-        float bridge_flow {0.0};
-        float layer_height {0.5};
+        float spacing {0.4f};
+        float nozzle_diameter {0.25f};
+        float bridge_flow {0.0f};
+        float layer_height {0.5f};
         WHEN("layer height is set to 0.2") {
             layer_height = 0.15f;
             THEN("Max width is set.") {