ENH: add back even-odd mode

Add back even-odd mode to support slicing 3DLabPrint
airplane models

Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: Id3efcfb0ecf98350add7a19885750df74d4fdedd
(cherry picked from commit 553371e61e35355b3a73694d4cf9acb179b2a427)

src/libslic3r/Preset.cpp

@@ -690,7 +690,7 @@ bool Preset::is_custom_defined()
 }
 
 static std::vector<std::string> s_Preset_print_options {
-    "layer_height", "initial_layer_print_height", "wall_loops", "slice_closing_radius", "spiral_mode",
+    "layer_height", "initial_layer_print_height", "wall_loops", "slice_closing_radius", "spiral_mode", "slicing_mode",
     "top_shell_layers", "top_shell_thickness", "bottom_shell_layers", "bottom_shell_thickness",
     "ensure_vertical_shell_thickness", "reduce_crossing_wall", "detect_thin_wall", "detect_overhang_wall",
     "seam_position", "wall_infill_order", "sparse_infill_density", "sparse_infill_pattern", "top_surface_pattern", "bottom_surface_pattern",

src/libslic3r/PrintConfig.cpp

@@ -2323,6 +2323,20 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionFloat(0.049));
 
+    def = this->add("slicing_mode", coEnum);
+    def->label = L("Slicing Mode");
+    def->category = L("Other");
+    def->tooltip = L("Use \"Even-odd\" for 3DLabPrint airplane models. Use \"Close holes\" to close all holes in the model.");
+    def->enum_keys_map = &ConfigOptionEnum<SlicingMode>::get_enum_values();
+    def->enum_values.push_back("regular");
+    def->enum_values.push_back("even_odd");
+    def->enum_values.push_back("close_holes");
+    def->enum_labels.push_back(L("Regular"));
+    def->enum_labels.push_back(L("Even-odd"));
+    def->enum_labels.push_back(L("Close holes"));
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionEnum<SlicingMode>(SlicingMode::Regular));
+
     def = this->add("enable_support", coBool);
     //BBS: remove material behind support
     def->label = L("Enable support");
@@ -3703,7 +3717,7 @@ void PrintConfigDef::handle_legacy(t_config_option_key &opt_key, std::string &va
         , "support_sharp_tails","remove_small_overhangs", "support_with_sheath",
         "tree_support_branch_diameter_angle", "tree_support_collision_resolution",
         "small_perimeter_speed", "max_volumetric_speed", "max_print_speed",
-        "support_bottom_z_distance", "support_closing_radius", "slicing_mode",
+        "support_bottom_z_distance", "support_closing_radius",
         "remove_freq_sweep", "remove_bed_leveling", "remove_extrusion_calibration",
         "support_transition_line_width", "support_transition_speed", "bed_temperature", "bed_temperature_initial_layer",
         "can_switch_nozzle_type", "can_add_auxiliary_fan", "extra_flush_volume", "spaghetti_detector"

src/libslic3r/PrintConfig.hpp

@@ -609,6 +609,7 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionInt,                 raft_layers))
     ((ConfigOptionEnum<SeamPosition>,  seam_position))
     ((ConfigOptionFloat,               slice_closing_radius))
+    ((ConfigOptionEnum<SlicingMode>,   slicing_mode))
     ((ConfigOptionBool,                enable_support))
     // Automatic supports (generated based on support_threshold_angle).
     ((ConfigOptionEnum<SupportType>,   support_type))

src/libslic3r/PrintObject.cpp

@@ -703,7 +703,8 @@ bool PrintObject::invalidate_state_by_config_options(
             || opt_key == "adaptive_layer_height"
             || opt_key == "raft_layers"
             || opt_key == "raft_contact_distance"
-            || opt_key == "slice_closing_radius") {
+            || opt_key == "slice_closing_radius"
+            || opt_key == "slicing_mode") {
             steps.emplace_back(posSlice);
 		} else if (
                opt_key == "elefant_foot_compensation"

src/libslic3r/PrintObjectSlice.cpp

@@ -141,13 +141,11 @@ static std::vector<VolumeSlices> slice_volumes_inner(
     //BBS: 0.0025mm is safe enough to simplify the data to speed slicing up for high-resolution model.
     //Also has on influence on arc fitting which has default resolution 0.0125mm.
     params_base.resolution     = 0.0025;
-    //BBS: remove slice mode, always regular
-    //switch (print_object_config.slicing_mode.value) {
-    //case SlicingMode::Regular:    params_base.mode = MeshSlicingParams::SlicingMode::Regular; break;
-    //case SlicingMode::EvenOdd:    params_base.mode = MeshSlicingParams::SlicingMode::EvenOdd; break;
-    //case SlicingMode::CloseHoles: params_base.mode = MeshSlicingParams::SlicingMode::Positive; break;
-    //}
-    params_base.mode = MeshSlicingParams::SlicingMode::Regular;
+    switch (print_object_config.slicing_mode.value) {
+    case SlicingMode::Regular:    params_base.mode = MeshSlicingParams::SlicingMode::Regular; break;
+    case SlicingMode::EvenOdd:    params_base.mode = MeshSlicingParams::SlicingMode::EvenOdd; break;
+    case SlicingMode::CloseHoles: params_base.mode = MeshSlicingParams::SlicingMode::Positive; break;
+    }
 
     params_base.mode_below     = params_base.mode;