fix: sequential-print arrange settings are ignored and never persisted (#15425)

src/slic3r/GUI/GLCanvas3D.cpp

@@ -1078,56 +1078,36 @@ const double GLCanvas3D::DefaultCameraZoomToPlateMarginFactor = 1.25;
 
 void GLCanvas3D::load_arrange_settings()
 {
-    std::string dist_fff_str =
+    // Each key must match what _render_arrange_menu writes, which appends a per-mode
-        wxGetApp().app_config->get("arrange", "min_object_distance_fff");
+    // postfix to the base name.
+    auto load_float = [](const char *key, float &out) {
+        // The menu writes these with float_to_string_decimal_point, so parse them back
+        // the same way rather than with anything locale-dependent.
+        std::string value = wxGetApp().app_config->get("arrange", key);
+        size_t      parsed = 0;
+        double      number = string_to_double_decimal_point(value, &parsed);
+        if (parsed > 0)
+            out = float(number);
+    };
+    auto load_bool = [](const char *key, bool &out) {
+        std::string value = wxGetApp().app_config->get("arrange", key);
+        if (!value.empty())
+            out = (value == "1" || value == "true");
+    };
 
-    std::string dist_fff_seq_print_str =
+    load_float("min_object_distance_fff",           m_arrange_settings_fff.distance);
-        wxGetApp().app_config->get("arrange", "min_object_distance_seq_print_fff");
+    load_float("min_object_distance_fff_seq_print", m_arrange_settings_fff_seq_print.distance);
+    load_float("min_object_distance_sla",           m_arrange_settings_sla.distance);
 
-    std::string dist_sla_str =
+    load_bool("enable_rotation_fff",           m_arrange_settings_fff.enable_rotation);
-        wxGetApp().app_config->get("arrange", "min_object_distance_sla");
+    load_bool("enable_rotation_fff_seq_print", m_arrange_settings_fff_seq_print.enable_rotation);
+    load_bool("enable_rotation_sla",           m_arrange_settings_sla.enable_rotation);
 
-    std::string en_rot_fff_str =
+    // These two keys carry no postfix, so the one stored value covers both FFF modes.
-        wxGetApp().app_config->get("arrange", "enable_rotation_fff");
+    load_bool("allow_multi_materials_on_same_plate", m_arrange_settings_fff.allow_multi_materials_on_same_plate);
-
+    load_bool("allow_multi_materials_on_same_plate", m_arrange_settings_fff_seq_print.allow_multi_materials_on_same_plate);
-    std::string en_rot_fff_seqp_str =
+    load_bool("avoid_extrusion_cali_region",         m_arrange_settings_fff.avoid_extrusion_cali_region);
-        wxGetApp().app_config->get("arrange", "enable_rotation_seq_print");
+    load_bool("avoid_extrusion_cali_region",         m_arrange_settings_fff_seq_print.avoid_extrusion_cali_region);
-
-    std::string en_rot_sla_str =
-        wxGetApp().app_config->get("arrange", "enable_rotation_sla");
-
-    std::string en_allow_multiple_materials_str =
-        wxGetApp().app_config->get("arrange", "allow_multi_materials_on_same_plate");
-
-    std::string en_avoid_region_str =
-        wxGetApp().app_config->get("arrange", "avoid_extrusion_cali_region");
-
-
-
-    if (!dist_fff_str.empty())
-        m_arrange_settings_fff.distance = std::stof(dist_fff_str);
-
-    if (!dist_fff_seq_print_str.empty())
-        m_arrange_settings_fff_seq_print.distance = std::stof(dist_fff_seq_print_str);
-
-    if (!dist_sla_str.empty())
-        m_arrange_settings_sla.distance = std::stof(dist_sla_str);
-
-    if (!en_rot_fff_str.empty())
-        m_arrange_settings_fff.enable_rotation = (en_rot_fff_str == "1" || en_rot_fff_str == "true");
-
-    if (!en_allow_multiple_materials_str.empty())
-        m_arrange_settings_fff.allow_multi_materials_on_same_plate = (en_allow_multiple_materials_str == "1" || en_allow_multiple_materials_str == "true");
-
-
-    if (!en_rot_fff_seqp_str.empty())
-        m_arrange_settings_fff_seq_print.enable_rotation = (en_rot_fff_seqp_str == "1" || en_rot_fff_seqp_str == "true");
-
-    if(!en_avoid_region_str.empty())
-        m_arrange_settings_fff.avoid_extrusion_cali_region = (en_avoid_region_str == "1" || en_avoid_region_str == "true");
-
-    if (!en_rot_sla_str.empty())
-        m_arrange_settings_sla.enable_rotation = (en_rot_sla_str == "1" || en_rot_sla_str == "true");
 
     //BBS: add specific arrange settings
     m_arrange_settings_fff_seq_print.is_seq_print = true;
@@ -5959,7 +5939,7 @@ bool GLCanvas3D::_render_orient_menu(float left, float right, float bottom, floa
 }
 
 //BBS: GUI refactor: adjust main toolbar position
-bool GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, float top)
+void GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, float top)
 {
     ImGuiWrapper *imgui = wxGetApp().imgui();
 
@@ -5984,7 +5964,6 @@ bool GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, flo
 
     imgui->begin(_L("Arrange options"), ImGuiWindowFlags_NoMove | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoTitleBar);
 
-    ArrangeSettings settings = get_arrange_settings();
     ArrangeSettings &settings_out = get_arrange_settings();
     const float slider_icon_width = imgui->get_slider_icon_size().x;
     const float cursor_slider_left = imgui->calc_text_size(_L("Spacing")).x + imgui->scaled(1.5f);
@@ -5993,13 +5972,9 @@ bool GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, flo
     auto &appcfg = wxGetApp().app_config;
     PrinterTechnology ptech = current_printer_technology();
 
-    bool settings_changed = false;
-    float dist_min = 0.f;  // 0 means auto
     std::string dist_key = "min_object_distance", rot_key = "enable_rotation";
-    std::string bed_shrink_x_key = "bed_shrink_x", bed_shrink_y_key = "bed_shrink_y";
     std::string multi_material_key = "allow_multi_materials_on_same_plate";
     std::string avoid_extrusion_key = "avoid_extrusion_cali_region";
-    std::string align_to_y_axis_key = "align_to_y_axis";
     std::string postfix;
     //BBS:
     bool seq_print = false;
@@ -6007,59 +5982,41 @@ bool GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, flo
     if (ptech == ptSLA) {
         postfix      = "_sla";
     } else if (ptech == ptFFF) {
-        seq_print = &settings == &m_arrange_settings_fff_seq_print;
+        seq_print    = wxGetApp().global_print_sequence() == PrintSequence::ByObject;
-        if (seq_print) {
+        postfix      = seq_print ? "_fff_seq_print" : "_fff";
-            postfix      = "_fff_seq_print";
-        } else {
-            postfix     = "_fff";
-        }
     }
 
     dist_key += postfix;
     rot_key  += postfix;
-    bed_shrink_x_key += postfix;
-    bed_shrink_y_key += postfix;
 
     ImGui::AlignTextToFramePadding();
     imgui->text(_L("Spacing"));
     ImGui::SameLine(1.2 * cursor_slider_left);
     ImGui::PushItemWidth(window_width - slider_icon_width);
-    bool b_Spacing = imgui->bbl_slider_float_style("##Spacing", &settings.distance, dist_min, 100.0f, "%5.2f") || dist_min > settings.distance;
+    bool b_Spacing = imgui->bbl_slider_float_style("##Spacing", &settings_out.distance, 0.f, 100.0f, "%5.2f", 1.0f, /*clamp=*/false);
     ImGui::SameLine(window_width - slider_icon_width + 1.3 * cursor_slider_left);
     ImGui::PushItemWidth(1.5 * slider_icon_width);
-    bool b_spacing_input = ImGui::BBLDragFloat("##spacing_input", &settings.distance, 0.05f, 0.0f, 0.0f, "%.2f");
+    bool b_spacing_input = ImGui::BBLDragFloat("##spacing_input", &settings_out.distance, 0.05f, 0.0f, 0.0f, "%.2f");
-    if (b_Spacing || b_spacing_input)
+    if (b_Spacing || b_spacing_input) {
-    {
+        settings_out.distance = std::max(0.f, settings_out.distance);
-        settings.distance = std::max(dist_min, settings.distance);
-        settings_out.distance = settings.distance;
         appcfg->set("arrange", dist_key.c_str(), float_to_string_decimal_point(settings_out.distance));
-        settings_changed = true;
     }
     imgui->text(_L("0 means auto spacing."));
 
     ImGui::Separator();
-    if (imgui->bbl_checkbox(_L("Auto rotate for arrangement"), settings.enable_rotation)) {
+    if (imgui->bbl_checkbox(_L("Auto rotate for arrangement"), settings_out.enable_rotation))
-        settings_out.enable_rotation = settings.enable_rotation;
         appcfg->set("arrange", rot_key.c_str(), settings_out.enable_rotation);
-        settings_changed = true;
-    }
 
-    if (imgui->bbl_checkbox(_L("Allow multiple materials on same plate"), settings.allow_multi_materials_on_same_plate)) {
+    if (imgui->bbl_checkbox(_L("Allow multiple materials on same plate"), settings_out.allow_multi_materials_on_same_plate))
-        settings_out.allow_multi_materials_on_same_plate = settings.allow_multi_materials_on_same_plate;
+        appcfg->set("arrange", multi_material_key.c_str(), settings_out.allow_multi_materials_on_same_plate);
-        appcfg->set("arrange", multi_material_key.c_str(), settings_out.allow_multi_materials_on_same_plate );
-        settings_changed = true;
-    }
 
     // only show this option if the printer has micro Lidar and can do first layer scan
     DynamicPrintConfig &current_config = wxGetApp().preset_bundle->printers.get_edited_preset().config;
     const bool has_lidar = wxGetApp().preset_bundle->is_bbl_vendor();
     auto                op             = current_config.option("scan_first_layer");
     if (has_lidar && op && op->getBool()) {
-        if (imgui->bbl_checkbox(_L("Avoid extrusion calibration region"), settings.avoid_extrusion_cali_region)) {
+        if (imgui->bbl_checkbox(_L("Avoid extrusion calibration region"), settings_out.avoid_extrusion_cali_region))
-            settings_out.avoid_extrusion_cali_region = settings.avoid_extrusion_cali_region;
+            appcfg->set("arrange", avoid_extrusion_key.c_str(), settings_out.avoid_extrusion_cali_region);
-            appcfg->set("arrange", avoid_extrusion_key.c_str(), settings_out.avoid_extrusion_cali_region ? "1" : "0");
-            settings_changed = true;
-        }
     } else {
         settings_out.avoid_extrusion_cali_region = false;
     }
@@ -6071,11 +6028,7 @@ bool GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, flo
             settings_out.align_to_y_axis = false;
         }
 
-        if (imgui->bbl_checkbox(_L("Align to Y axis"), settings.align_to_y_axis)) {
+        imgui->bbl_checkbox(_L("Align to Y axis"), settings_out.align_to_y_axis);
-            settings_out.align_to_y_axis = settings.align_to_y_axis;
-            appcfg->set("arrange", align_to_y_axis_key, settings_out.align_to_y_axis ? "1" : "0");
-            settings_changed = true;
-        }
 
         if (settings_out.enable_rotation == true) { imgui->disabled_end(); }
     }
@@ -6091,7 +6044,6 @@ bool GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, flo
 
     if (imgui->button(_L("Reset"))) {
         settings_out = ArrangeSettings{};
-        settings_out.distance = std::max(dist_min, settings_out.distance);
         //BBS: add specific arrange settings
         if (seq_print) settings_out.is_seq_print = true;
 
@@ -6101,18 +6053,16 @@ bool GLCanvas3D::_render_arrange_menu(float left, float right, float bottom, flo
         else
             settings_out.align_to_y_axis = false;
 
-        appcfg->set("arrange", dist_key, float_to_string_decimal_point(settings_out.distance));
+        appcfg->erase("arrange", dist_key);
-        appcfg->set("arrange", rot_key, settings_out.enable_rotation ? "1" : "0");
+        appcfg->erase("arrange", rot_key);
-        appcfg->set("arrange", align_to_y_axis_key, settings_out.align_to_y_axis ? "1" : "0");
+        appcfg->erase("arrange", multi_material_key);
-        settings_changed = true;
+        appcfg->erase("arrange", avoid_extrusion_key);
     }
     ImGui::PopStyleVar(1);
     imgui->end();
 
     //BBS
     ImGuiWrapper::pop_toolbar_style();
-
-    return settings_changed;
 }
 
 static const float cameraProjection[16] = {1.f, 0.f, 0.f, 0.f, 0.f, 1.f, 0.f, 0.f, 0.f, 0.f, 1.f, 0.f, 0.f, 0.f, 0.f, 1.f};

src/slic3r/GUI/GLCanvas3D.hpp

@@ -656,11 +656,7 @@ public:
     }
 
     void load_arrange_settings();
-    ArrangeSettings& get_arrange_settings();// { return get_arrange_settings(this); }
+    ArrangeSettings& get_arrange_settings();
-    ArrangeSettings& get_arrange_settings(PrintSequence print_seq) {
-        return (print_seq == PrintSequence::ByObject) ? m_arrange_settings_fff_seq_print
-            : m_arrange_settings_fff;
-    }
 
     class SequentialPrintClearance
     {
@@ -1163,17 +1159,6 @@ public:
     void highlight_toolbar_item(const std::string& item_name);
     void highlight_gizmo(const std::string& gizmo_name);
 
-    ArrangeSettings get_arrange_settings() const {
-        const ArrangeSettings &settings = get_arrange_settings();
-        ArrangeSettings ret = settings;
-        if (&settings == &m_arrange_settings_fff_seq_print) {
-            ret.distance = std::max(ret.distance,
-                                    float(min_object_distance(*m_config)));
-        }
-
-        return ret;
-    }
-
     // Timestamp for FPS calculation and notification fade-outs.
     static int64_t timestamp_now() {
 #ifdef _WIN32
@@ -1308,7 +1293,7 @@ private:
     void _render_selection_sidebar_hints() { m_selection.render_sidebar_hints(m_sidebar_field, m_gizmos.get_uniform_scaling()); }
     //BBS: GUI refactor: adjust main toolbar position
     bool _render_orient_menu(float left, float right, float bottom, float top);
-    bool _render_arrange_menu(float left, float right, float bottom, float top);
+    void _render_arrange_menu(float left, float right, float bottom, float top);
     void _render_3d_navigator();
 
     void _update_volumes_hover_state();

src/slic3r/GUI/GUI_App.cpp

@@ -9197,7 +9197,7 @@ int GUI_App::filaments_cnt() const
 PrintSequence GUI_App::global_print_sequence() const
 {
     PrintSequence global_print_seq = PrintSequence::ByDefault;
-    auto curr_preset_config = preset_bundle->prints.get_edited_preset().config;
+    const auto &curr_preset_config = preset_bundle->prints.get_edited_preset().config;
     if (curr_preset_config.has("print_sequence"))
         global_print_seq = curr_preset_config.option<ConfigOptionEnum<PrintSequence>>("print_sequence")->value;
     return global_print_seq;

tests/libslic3r/test_arrange.cpp

@@ -4,6 +4,8 @@
 #include "libslic3r/BoundingBox.hpp"
 #include "libslic3r/ClipperUtils.hpp"
 #include "libslic3r/ExPolygon.hpp"
+#include "libslic3r/Print.hpp"
+#include "libslic3r/PrintConfig.hpp"
 
 using namespace Slic3r;
 using namespace Slic3r::arrangement;
@@ -24,11 +26,13 @@ ArrangePolygon make_square(coord_t side)
     return ap;
 }
 
-ArrangePolygons squares(int n, double side_mm)
+ArrangePolygons squares(int n, double side_mm, double height_mm = 0.)
 {
     ArrangePolygons items;
-    for (int i = 0; i < n; ++i)
+    for (int i = 0; i < n; ++i) {
         items.emplace_back(make_square(scaled(side_mm)));
+        items.back().height = height_mm;
+    }
     return items;
 }
 
@@ -82,6 +86,38 @@ void require_no_overlap(const ArrangePolygons &items)
     REQUIRE(disjoint(placed_shapes(items)));
 }
 
+// The sequential-print floor is chosen by comparing object height against the nozzle,
+// so the two are defined together and every expectation is derived from them.
+constexpr double NOZZLE_HEIGHT_MM = 2.5;
+constexpr double CLEARANCE_MM     = 30.;
+constexpr double NOZZLE_FLOOR_MM  = MAX_OUTER_NOZZLE_DIAMETER / 2.;
+
+ArrangeParams seq_print_params(coord_t min_dist)
+{
+    ArrangeParams p       = quiet_params(min_dist);
+    p.is_seq_print        = true;
+    p.clearance_radius    = float(CLEARANCE_MM);
+    p.nozzle_height       = float(NOZZLE_HEIGHT_MM);
+    p.object_skirt_offset = 0.f;
+    return p;
+}
+
+// update_selected_items_inflation reads the bed out of the config to cap inflation.
+DynamicPrintConfig bed_config()
+{
+    DynamicPrintConfig c;
+    c.set_key_value("printable_area", new ConfigOptionPoints{{0, 0}, {200, 0}, {200, 200}, {0, 200}});
+    return c;
+}
+
+ArrangePolygons squares_of_heights(const std::vector<double> &heights_mm)
+{
+    ArrangePolygons items;
+    for (double height_mm : heights_mm)
+        items.push_back(squares(1, 20., height_mm).front());
+    return items;
+}
+
 } // namespace
 
 // Prove the overlap check the other tests rely on actually detects overlap.
@@ -222,3 +258,61 @@ TEST_CASE("Arrange aligns the pile to a custom center", "[Arrange]")
         REQUIRE(ap.bed_idx == 0);
     require_no_overlap(items);
 }
+
+TEST_CASE("Sequential print floors the object distance by object height", "[Arrange]")
+{
+    // The only place sequential-print clearance is enforced. The arrange menu offers
+    // no floor of its own, so a stored 0 has to be raised here or not at all.
+    struct Case
+    {
+        std::string         description;
+        std::vector<double> heights;
+        double              skirt_offset_mm;
+        double              expected_floor_mm;
+    };
+
+    auto c = GENERATE(values<Case>({
+        {"objects taller than the nozzle need the full clearance",     {NOZZLE_HEIGHT_MM * 2, NOZZLE_HEIGHT_MM * 2}, 0., CLEARANCE_MM},
+        {"an object exactly at the nozzle height counts as tall",      {NOZZLE_HEIGHT_MM,     NOZZLE_HEIGHT_MM},     0., CLEARANCE_MM},
+        {"one tall object among short ones is enough",                 {NOZZLE_HEIGHT_MM / 2, NOZZLE_HEIGHT_MM * 2}, 0., CLEARANCE_MM},
+        {"objects the nozzle clears keep only the nozzle-width floor", {NOZZLE_HEIGHT_MM / 2, NOZZLE_HEIGHT_MM / 2}, 0., NOZZLE_FLOOR_MM},
+        {"a wide skirt raises the floor for short objects",            {NOZZLE_HEIGHT_MM / 2, NOZZLE_HEIGHT_MM / 2}, 3., 6.},
+    }));
+
+    DYNAMIC_SECTION(c.description)
+    {
+        ArrangePolygons    items = squares_of_heights(c.heights);
+        DynamicPrintConfig cfg   = bed_config();
+        ArrangeParams      p     = seq_print_params(0);
+        p.object_skirt_offset    = float(c.skirt_offset_mm);
+
+        update_selected_items_inflation(items, &cfg, p);
+
+        CHECK(p.min_obj_distance >= scaled(c.expected_floor_mm));
+        CHECK(p.min_obj_distance <= scaled(c.expected_floor_mm + 0.01));
+        // Half each, so a pair ends up a full min_obj_distance apart.
+        CHECK(items.front().inflation == p.min_obj_distance / 2);
+    }
+}
+
+TEST_CASE("Sequential print keeps an object distance already above the floor", "[Arrange]")
+{
+    const coord_t      stored = scaled(CLEARANCE_MM * 2);
+    ArrangePolygons    items  = squares_of_heights({NOZZLE_HEIGHT_MM * 2, NOZZLE_HEIGHT_MM * 2});
+    DynamicPrintConfig cfg    = bed_config();
+    ArrangeParams      p      = seq_print_params(stored);
+
+    update_selected_items_inflation(items, &cfg, p);
+    CHECK(p.min_obj_distance == stored);
+}
+
+TEST_CASE("Layered printing does not floor the object distance", "[Arrange]")
+{
+    ArrangePolygons    items = squares_of_heights({NOZZLE_HEIGHT_MM * 2, NOZZLE_HEIGHT_MM * 2});
+    DynamicPrintConfig cfg   = bed_config();
+    ArrangeParams      p     = seq_print_params(0);
+    p.is_seq_print           = false;
+
+    update_selected_items_inflation(items, &cfg, p);
+    CHECK(p.min_obj_distance == 0);
+}

tests/libslic3r/test_config.cpp

@@ -1091,3 +1091,73 @@ TEST_CASE("get_filament_type treats empty vector options as absent", "[Config][F
         REQUIRE(displayed == "Sup.PLA");
     }
 }
+
+namespace {
+
+// min_object_distance reads exactly these three options.
+DynamicPrintConfig spacing_config(PrinterTechnology tech, PrintSequence seq, double clearance_radius)
+{
+    DynamicPrintConfig c;
+    c.set_key_value("printer_technology", new ConfigOptionEnum<PrinterTechnology>(tech));
+    c.set_key_value("print_sequence", new ConfigOptionEnum<PrintSequence>(seq));
+    c.set_key_value("extruder_clearance_radius", new ConfigOptionFloat(clearance_radius));
+    return c;
+}
+
+} // namespace
+
+TEST_CASE("min_object_distance floors object spacing per print sequence", "[Config]")
+{
+    struct Case
+    {
+        std::string       description;
+        PrinterTechnology tech;
+        PrintSequence     sequence;
+        double            clearance_radius;
+        double            expected;
+    };
+
+    auto c = GENERATE(values<Case>({
+        {"sequential FFF takes a clearance radius above the floor", ptFFF, PrintSequence::ByObject, 12., 12.},
+        {"sequential FFF holds the floor at the radius",            ptFFF, PrintSequence::ByObject,  6.,  6.},
+        {"sequential FFF holds the floor below the radius",         ptFFF, PrintSequence::ByObject,  4.,  6.},
+        {"layered FFF ignores the clearance radius",                ptFFF, PrintSequence::ByLayer,  12.,  6.},
+        {"SLA is a flat 6mm",                                       ptSLA, PrintSequence::ByObject, 12.,  6.},
+        {"SLA ignores the print sequence too",                      ptSLA, PrintSequence::ByLayer,  12.,  6.},
+    }));
+
+    DYNAMIC_SECTION(c.description)
+    {
+        CHECK_THAT(min_object_distance(spacing_config(c.tech, c.sequence, c.clearance_radius)),
+                   Catch::Matchers::WithinAbs(c.expected, 1e-9));
+    }
+}
+
+TEST_CASE("min_object_distance yields no floor when an FFF config lacks the options", "[Config]")
+{
+    // Missing options yield 0 rather than an error, so a caller gets no floor at all.
+    SECTION("no clearance radius") {
+        DynamicPrintConfig c;
+        c.set_key_value("printer_technology", new ConfigOptionEnum<PrinterTechnology>(ptFFF));
+        c.set_key_value("print_sequence", new ConfigOptionEnum<PrintSequence>(PrintSequence::ByObject));
+        CHECK_THAT(min_object_distance(c), Catch::Matchers::WithinAbs(0., 1e-9));
+    }
+
+    SECTION("no print sequence") {
+        DynamicPrintConfig c;
+        c.set_key_value("printer_technology", new ConfigOptionEnum<PrinterTechnology>(ptFFF));
+        c.set_key_value("extruder_clearance_radius", new ConfigOptionFloat(12.));
+        CHECK_THAT(min_object_distance(c), Catch::Matchers::WithinAbs(0., 1e-9));
+    }
+
+    SECTION("nothing at all") {
+        CHECK_THAT(min_object_distance(DynamicPrintConfig{}), Catch::Matchers::WithinAbs(0., 1e-9));
+    }
+
+    SECTION("an unset printer technology is treated as FFF") {
+        DynamicPrintConfig c;
+        c.set_key_value("print_sequence", new ConfigOptionEnum<PrintSequence>(PrintSequence::ByObject));
+        c.set_key_value("extruder_clearance_radius", new ConfigOptionFloat(12.));
+        CHECK_THAT(min_object_distance(c), Catch::Matchers::WithinAbs(12., 1e-9));
+    }
+}