ENH: add filament change length for color change

Jira: none

Signed-off-by: qing.zhang <qing.zhang@bambulab.com>
Change-Id: I84ab638d6af056ede9b9524d1395eb42fa731150

resources/profiles/BBL/filament/fdm_filament_dual_common.json

@@ -62,5 +62,8 @@
     "nozzle_temperature_initial_layer": [
         "",
         ""
+    ],
+    "filament_change_length": [
+        "10"
     ]
 }

src/libslic3r/GCode/WipeTower.cpp

@@ -676,6 +676,7 @@ WipeTower::WipeTower(const PrintConfig& config, int plate_idx, Vec3d plate_origi
     m_wipe_volume(prime_volume),
     m_enable_timelapse_print(config.timelapse_type.value == TimelapseType::tlSmooth),
     m_nozzle_change_length(config.extruder_change_length.get_at(0)),
+    m_filaments_change_length(config.filament_change_length.values),
     m_is_multi_extruder(config.nozzle_diameter.size() > 1),
     m_is_print_outer_first(config.prime_tower_outer_first.value),
     m_use_gap_wall(config.prime_tower_skip_points.value)
@@ -1680,7 +1681,7 @@ void WipeTower::plan_toolchange(float z_par, float layer_height_par, unsigned in
     float nozzle_change_depth = 0;
     if (!m_filament_map.empty() && m_filament_map[old_tool] != m_filament_map[new_tool]) {
         double e_flow                   = extrusion_flow(0.2);
-        double length                   = m_nozzle_change_length / e_flow;
+        double length                   = (m_nozzle_change_length + m_filaments_change_length[old_tool]) / e_flow;
         int    nozzle_change_line_count = length / (m_wipe_tower_width - 2*m_perimeter_width) + 1;
         if (has_tpu_filament())
             nozzle_change_depth = m_tpu_fixed_spacing * nozzle_change_line_count * m_perimeter_width;

src/libslic3r/GCode/WipeTower.hpp

@@ -388,7 +388,8 @@ private:
     float  m_first_layer_speed  = 0.f;
     size_t m_first_layer_idx    = size_t(-1);
 
-    double       m_nozzle_change_length = 10;
+    double       m_nozzle_change_length = 0;
+    std::vector<double> m_filaments_change_length;
     size_t       m_cur_layer_id;
     NozzleChangeResult m_nozzle_change_result;
     std::vector<int>   m_filament_map;

src/libslic3r/Preset.cpp

@@ -932,7 +932,9 @@ static std::vector<std::string> s_Preset_filament_options {
     "filament_extruder_variant",
     //OrcaSlicer
     "enable_pressure_advance", "pressure_advance", "chamber_temperatures","filament_notes",
-    "filament_long_retractions_when_cut","filament_retraction_distances_when_cut","filament_shrink"
+    "filament_long_retractions_when_cut","filament_retraction_distances_when_cut","filament_shrink",
+    //BBS filament change length while the extruder color
+    "filament_change_length"
 };
 
 static std::vector<std::string> s_Preset_machine_limits_options {

src/libslic3r/Print.cpp

@@ -284,6 +284,7 @@ bool Print::invalidate_state_by_config_options(const ConfigOptionResolver & /* n
                 || opt_key == "filament_scarf_height"
                 || opt_key == "filament_scarf_gap"
                 || opt_key == "filament_scarf_length"
+                || opt_key == "filament_change_length"
                 || opt_key == "independent_support_layer_height") {
             steps.emplace_back(psWipeTower);
             // Soluble support interface / non-soluble base interface produces non-soluble interface layers below soluble interface layers.

src/libslic3r/PrintConfig.cpp

@@ -1853,6 +1853,14 @@ void PrintConfigDef::init_fff_params()
     def->mode  = comAdvanced;
     def->set_default_value(new ConfigOptionFloats{10});
 
+    def           = this->add("filament_change_length", coFloats);
+    def->label    = L("Filament change length");
+    def->tooltip  = L("Filament change length");
+    def->sidetext = L("mm");
+    def->min      = 0;
+    def->mode     = comAdvanced;
+    def->set_default_value(new ConfigOptionFloats{10});
+
     def          = this->add("filament_is_support", coBools);
     def->label   = L("Support material");
     def->tooltip = L("Support material is commonly used to print support and support interface");
@@ -3258,7 +3266,7 @@ void PrintConfigDef::init_fff_params()
     def->sidetext = L("mm");
     def->min      = 0;
     def->mode     = comAdvanced;
-    def->set_default_value(new ConfigOptionFloats{10});
+    def->set_default_value(new ConfigOptionFloats{0});
 
     def = this->add("extruder_ams_count", coStrings);
     def->label = "Extruder ams count";

src/libslic3r/PrintConfig.hpp

@@ -1010,6 +1010,7 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionFloatsOrPercents,    filament_scarf_height))
     ((ConfigOptionFloatsOrPercents,    filament_scarf_gap))
     ((ConfigOptionFloats,              filament_scarf_length))
+    ((ConfigOptionFloats,              filament_change_length))
     ((ConfigOptionFloats,              filament_cost))
     ((ConfigOptionFloats,              impact_strength_z))
     ((ConfigOptionString,              filament_notes))

src/slic3r/GUI/Tab.cpp

@@ -3183,6 +3183,7 @@ void TabFilament::build()
         // BBS
         optgroup->append_single_option_line("filament_is_support");
         optgroup->append_single_option_line("impact_strength_z");
+        optgroup->append_single_option_line("filament_change_length");
 
         //optgroup->append_single_option_line("filament_colour");
         optgroup->append_single_option_line("required_nozzle_HRC");